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36.
One who is not good at his chosen profession or current task.

A jabroni talks smack but has no way of backing up his mouth.

A jabroni lets his mouth say stupid things when it shouldn't.
To quote The Rock... "Who... in the Blue Hell are you... jabroni?"
As if to say, "Who are YOU to interrupt me?"
de Lee Miller 6 janvier 2003
 
37.
1. a wrestler with no shtick, no costume, and a lame name like "john evans", going up against a real wrestler lkie "hulk hogan" or "the rock". a jabroni may get in a couple good moves, may even get into a 'near-pin' situation, but will ultimately lose. why? he's a fuckin' jabroni!
2. a poser, one without an identity.
3. fodder for the ring. see 'dead meat'
1. that jabroni was wearing calvin klein briefs for a costume! good grief!

2. stop acting like a jabroni, you'll get your ass kicked.

3. who's the jabroni?
de ivan stratego 11 mai 2006
 
38.
one whos shit is most definitely weak.

someone who talks big, then when its time to run the table they're passed out underneath it.
"Now look at this jabroni here"
de christopher j h 31 août 2006
 
39.
The piece of skin between your balls and your asshole.
Kieran likes to lick jabroni's
de Steveo 24 novembre 2004
 
40.
A job-less loser who frequents A4E in Birkenhead.
"Get a job you Jabroni."

"Shut up Carro"
de Ian 13 avril 2005
 
41.
One who urinates in inappropriate places While intoxicated.
Hey jabroni you pissed in my sock drawer.
de T. Flynn 11 octobre 2014