“Cop talk” often varies by region and the “10-codes” vary a lot, with some 10-codes completely different from state to state. (To illustrate that point, I’ve included a few 10-codes below that mean polar opposites that could be highly confusing if you’re a cop and responding to the erroneous code!) 10-codes were originally borrowed from truckers and used in police work to keep radio traffic conversation succinct. However, because 10-codes now vary so drastically from region to region, there is a move to do away with the codes to avoid causing confusion between agencies.

The other slang on the list is fairly universal cop talk that you might hear from different areas; others are unique and I included them because they are intriguing or outright humorous.

This is not meant to be a thorough or exhaustive list, mind you, as that would fill up an entire book. Consider this list just something to whet your appetite.

5150: Mental health case or a person who is a danger to themselves
10-40: Can mean “I’m on a meal break” OR “Shots fired” (Obviously, this is an example of how the 10-codes can confuse and cause communication problems!)
10-42: Ending tour of duty
10-45: Can mean everything from “I’m on a coffee break” to “Fatality” to “Animal Carcass on road”
10-74: “No,” “Negative,” “Nada,” “Zip,” “Zilch”
11-99: Officer down
10-4:  Okay/Acknowledgement
10-8: Adjective that means “a good piece of equipment” (That car is 10-8!”/Also means “In service” or “available for next call”
10-20: Location (“What’s your 10-20?”)
Aggravated Mopery: When a cop can’t think of anything else, this charge can be put forth
ART:  Assuming Room Temperature
Ate His Gun: Suicide by placing gun in mouth and shooting self
Badge Bunny: A female officer who is attracted to and pursues other officers
Beat Wife: A sex partner on the job, usually a citizen
Blue dick chaser: Female groupie who is attracted to a law enforcement officer
Blue flame:  Know it all rookie who will soon burn out
Blue hair: Elderly person
BOLF: Be On Lookout For
Bracelets:  Handcuffs
Cage: Patrol car
Chester: Child molester
Choir Practice:  Cops gathering in bar or possibly somebody’s home to have a drink or get loose before heading home after duty
Clusterfuck: A really screwed up situation
Collared:  Arrested
Dance: To fight
Diaper dick:  Child sex crimes investigator
Dickless Tracey:  Female detective who nobody respects
DMV: Dead Man Walking—Refers to cop who has pissed off other  officers or supervisors and whose days are numbered
Drop a dime: Tipping off cops about criminal activity
DRT: Dead Right There
DWHUA: Driving While Head Up Ass
DWO: Driving While Old
Five-by-nine: A prison cell
FNG: Fucking New Guy (A rookie cop)
Frequent Flyer:  Someone who ends up in jail often
FUBR: Fucked Up Beyond Recognition
Geeked up:  High on meth
Good pop:  Nice arrest
Good: Good, to a cop, means “bad” to the rest of us. Such as  “a good crime,” “a good accident,” or “a good burglary.” Not sure of the origin of this, but there’s the idea that cops want to handle “bad” incidents because that’s what keeps them interested. Thus, a “bad” accident to us is good to a cop. Confusing, I realize, but not if you’re a cop.
Hairpiece: An older cop who is an idiot/A dottering old cop who has lost his edge
HBD: Had Been Drinking
Heart-to-heart: A “come to Jesus” meeting/interview (“Let’s cut to the chase and get to the truth.”
Hinky: Suspicious; not right
Hook ‘Em: Handcuff
Hook ‘n’ Book: Handcuff and process for jail
Hooked: Arrested
Hump: (Noun) An idiot
Jammed Up: To get in trouble
JDLR: Just Doesn’t Look Right
Kiddie cop/Lolly Cop: School resource officer
Knee-to-knee:  Interrogation of suspect in interview room
Like:  A determination that a suspect is guilty of a crime (“I like John for the assault.”)
Little Bastards: Juvenille offender
Mowing the lawn: Sucking up to the brass
Mushrooms: Night shift officers
Old hat: Veteran cop
Out on a personal: Need to use bathroom really badly
P.O.P.O.:  Pissing Off the POlice
Perp: Short for “perpetrator”
Pickle Suit:   Deputy Sheriff’s green uniform
Polishing his nose: Same as Mowing the Lawn
Pup:  Young officer
Rabbit blood: A runner, a perp with a history of running from cops
Rabbit Range: Game warden
Rabbit Ranger: Fish and game officer
ROAD: Retired On Active Duty (a.k.a., a lazy cop)
Roll Over: When a co-defendant agrees to testify against their other co-defendant, often in exchange for a lighter sentence
Scope out:  Look at, watch
Scrote: Nasty person who has a criminal vibe
Shitbag: Offender
Shop and Rob: A convenience store
Sit up, sitting up: Surveillance of suspect
Skell:  Homeless, smelly person
Slot: Arrest (“I slotted the perp.”)
Slug: A patrol officer or detective who is more useful as a doorstop than as a cop
Stroke/juice: Power or respect
SWAG:  Scientific Wild Ass Guess
Swatter: SWAT cop
SWOT:  Strategic Waste Of Time
Take Paper: Write a police report
The Old Man: The boss
Three hots and a cot: Three hot meals and a place to sleep/A brief stay in jail.
Tits Up: Body found on his/her back
Toss:  Perform a search
Toss: Search
Tweakin’, tweaker: A meth head
Vic:  Victim
Weenie Whacker:  Indecent exposure
Went Left: Person or situation that has gone bad



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