look up any word, like sex:
 
4.
A homosexual male who likes to fuck his male partner up the arse.
"I didn't know that Rock Hudson was a reargunner!"
"Yep,gay as!"
by Colin T White April 12, 2008
 
1.
An accessory to the more commonly known "wing man," the rear gunner's job is to provide even more assistance to the lead and the wing men. The rear gunner's job is to hurl insults and other harmful comments about the physical traits or mental insecurities of anyone and everyone that tries to approach either of his buddies. The rear gunner is a necessity for serious pick up situations, a job to be entrusted to a true friend and serious shit talker.
"Yo bro isn't that Stephanie your ex girlfriend?"

"Oh shit ya, Tony will handle it, he's the rear gunner tonight."
by Matt and Tony August 05, 2007
 
2.
A very brave bloke who sat for hours in the rear gun turret of a WW2 bomber having the shit shot out of him by enemy fighters. It was lonely freezingly cold job with a high mortality rate.
A WW2 bomber had several defensive gun turrets, the rear one was the most vunerable to being hit by an enemy fighter's machine guns.
by TimB June 05, 2005
 
3.
homosexual
he is a right rear gunner
by divham September 24, 2008
 
5.
A male of dubious sexuality who likes to do another bloke up the arse
Big Kris shot his load up Ingrams shitter last night, he's such a rear gunner
by simply the best May 13, 2003