Prison file containing all information on a prisoner or also can mean their reputation. Prisoners can put false jackets on other prisoners to discredit them.
"He's a child molester, it's in his jacket"
by x July 24, 2003
someone who raises some one else child as his own with or without knowing
ian beale or any other sap
does he know that kid aint his why is he being a jacket
by nezzman January 13, 2008
prison slang for ones legal history
"He robbed a bank! It's in his jacket!"
"He must be an alcoholic because a DUI is in his jacket."
"She's a thief! Don't trust her! Shoplifting is in her jacket!"
by jwinter August 4, 2017
something your girlfriend takes and never gives back o matter what
man 1: Dude where`s your jacket? It`s cold out here!
man 2: My girlfriend took it last month and hasn`t given it back.
by I'mBatperson June 6, 2017
The police.
Used by Eazy-E on N.W.A.'s seminal single "Fuck tha Police".
"I'm tired of the motherfuckin' jacket. Sweatin my gang while I'm chillin' in the shack and shining the light in my face and for what? Maybe it's because I kick so much butt." -An exerpt from Eazy's verse on "Fuck tha Police"
by Narek February 1, 2007