16 Secret Codes Used by Crime Families
For decades, organized crime families have survived through one crucial skill: speaking in riddles that sound like ordinary conversation to outsiders but carry deadly meaning within their world. From the Italian-American Cosa Nostra to the Japanese Yakuza, these criminal organizations developed elaborate systems of coded language, secret signals, and unspoken rules that kept their operations hidden from law enforcement while maintaining order within their ranks.
Here’s a list of 16 secret communication methods and coded languages that crime families have used to stay one step ahead of the authorities, proving that sometimes the most dangerous conversations happen in broad daylight.
Omertà
The ultimate code isn’t spoken—it’s the sacred vow of silence that binds all Mafia members. Omertà implies “the categorical prohibition of cooperation with state authorities or reliance on its services, even when one has been a victim of a crime.” Breaking this code means death.
The rule of omertà is brutally simple: never talk to the authorities about criminal activities of any kind or committed by anyone — even mortal enemies. Even innocent victims are expected to handle justice personally rather than involve police.
“This Thing of Ours”
Cosa Nostra: a mob family, or the entire mob. When Mafiosi refer to “this thing of ours,” they’re speaking about their organization without ever naming it directly. The phrase creates instant recognition among members while remaining meaningless to outsiders.
Italian-American families brought this terminology from Sicily, where the phrase cosa nostra — “our way,” or “this thing of ours” — was used to describe the lifestyle of a Mafioso in Sicily.
Message Jobs
Message job: placing the bullet in someone’s body such that a specific message is sent to that person’s crew or family. The location tells the story. A bullet through the eye means “we’re watching you.” The mouth indicates someone was a rat.
These weren’t random acts of violence but calculated communications sent through corpses. Each placement carried specific meaning that other criminals would understand instantly.
The Books Are Open
The Books: a phrase indicating membership in the Family. If there is a possibility for promotion, then the books are open. If not, the books are closed. When someone asks about membership opportunities, this phrase communicates everything without saying anything incriminating.
Open books meant recruitment was happening. Closed books? Don’t even ask.
Going on the Lam
Moving secretly. Indicted mobsters, in an effort to avoid arrest, might go “on the lam,” changing their address, moving secretly from place to place. The phrase sounds innocent enough—like going on vacation—but signals a fugitive lifestyle to those who understand.
Sometimes the simplest codes work best. Especially when the FBI is listening.
Cleaning
Cleaning: taking the necessary steps (driving around, stopping in various locations) to avoid being followed. When a mobster says he needs to “clean” himself, he’s not talking about laundry. He’s describing counter-surveillance tactics.
To take the necessary steps to drive around while watching your rearview mirror and/or stopping at various locations to avoid being followed by law enforcement. Basic tradecraft disguised as household chores.
Friend of Mine vs Friend of Ours
The introduction protocol reveals everything about someone’s status. Used in introductions to denote a person who is not a made guy, but who is being vouched for by a made guy. See also a friend of ours, amico nostro. Also known as: Amico mio.
But “friend of ours” is used to introduce one made guy to another. The difference between “mine” and “ours” determines whether someone lives or dies in certain situations.
Yubitsume
The yakuza are known for their strict codes of conduct, their organized fiefdom nature, and several unconventional ritual practices such as yubitsume, or amputation of the left little finger. When a Yakuza member fails their boss, they perform finger-cutting as an apology.
Often he’ll send his dismembered pinky to his oyabun as a sign of his penitence and loyalty. The shortened fingers become permanent identification markers within Japanese organized crime. No words needed.
Vory v Zakone
“Vory v Zakone”, which translates to “Thieves in Law”. This designation refers to a high-ranking, elite status within the criminal hierarchy. Russian organized crime uses this title for their highest-ranking members, bound by strict moral codes.
They are typically identified by extensive and symbolically significant tattoos that represent their status, personal history, and adherence to the code. The tattoos themselves function as a coded language visible only to other criminals.
Waste Management Business
Waste management business: euphemism for organized crime. When mobsters discuss their “waste management business,” they’re usually referring to murder, extortion, or other criminal activities. The terminology sounds perfectly legitimate to outside ears.
Tony Soprano would be proud. Sometimes the best cover is hiding in plain sight.
The Commission
The Commission, The: Mafia “ruling body”, typically a panel made up of the bosses of the five New York Families. This governing body makes decisions about territory, disputes, and sanctions, but they never call it by its real name in conversation.
Members refer to “meetings” or “getting together” rather than formal organizational titles. Even the most powerful criminals avoid direct references to their leadership structure.
Oyabun-Kobun
In yakuza gangs, there’s a structure called “oyabun-kobun” that you’d be foolish to disobey. Oyabun refers to the “father” and kobun to his loyal “son”. The father-son terminology disguises a rigid criminal hierarchy where disobedience has deadly consequences.
This family language helps Yakuza members discuss rank and authority without using military or criminal terminology that might alert authorities.
Lupara Bianca
Lupara Bianca – Translates as “White Death” and refers to murder someone without their body ever being found. When someone mentions a “white death,” they’re discussing a perfect murder where the victim simply vanishes.
Lupara Bianca: a journalistic term to indicate a Mafia slaying done in such a way that the victim’s body is never found. Nobody, no crime, no problem.
On the Pad
Designation for a law enforcement officer who is paid bribes by the underworld to ignore certain criminal activity. When criminals discuss who’s “on the pad,” they’re identifying corrupt officials in their pocket.
The phrase sounds like administrative paperwork rather than bribery. Perfect cover for discussing police corruption.
Making His Bones
Make his bones – To carry out a murder for the Mafia. This euphemism describes a member’s first sanctioned killing, the act that proves their loyalty and earns them full membership.
The phrase sounds almost medical or scientific. Just another way to discuss homicide without saying the word “murder.”
Going South
Going south: Stealing, passing money under the table, or going on the lam. When money or a person “goes south,” it means something has gone wrong—funds have been stolen, someone has betrayed the organization, or a member has fled.
The directional reference sounds like ordinary conversation about travel or weather, but carries significant meaning about organizational problems.
The Language of Shadows
These coded communications represent more than criminal slang—they demonstrate the sophisticated organizational structures that allowed crime families to operate for decades despite intensive law enforcement pressure. Unlike other forms of organized crime, mafias have always tended to communicate only by word of mouth. The codes became their survival mechanism.
Modern wiretapping and surveillance technology has made some traditional codes obsolete, but the principle remains: the most dangerous conversations often sound like the most ordinary ones. In a world where a single misunderstood word can mean death, precision in language becomes a matter of life and death.
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