A male homosexual who has yet to come out of the closet (or trunk).
A Scottish slang term for a male homosexual.
For example,

1. Did you see Dave looking at that bloke, I think he is a bit of a trunk monkey.
2. I feel sorry for Dave that he hasn't come to terms with his sexuality yet. He still tries to make his friends think he likes girls, but we all know he's a trunk monkey!
by Dick Splash 2 June 13, 2009
A weak willed person that hangs on to a stronger person and does their dirty work for them.
Loraine does what ever Kim tells her to do, she is such a pathetic trunk monkey.
by Stan March 16, 2004
Getting having your sex with your bitch while she sits on the trunk of your car
Me and my old lady went out lastnight and I got me some trunk monkey before I took her home
by d.key March 31, 2006
1.A bitch that likes having sex in the back of limos with multiple partners for drugs liquor and money,
2. the male sexual reproduction organ when used from behind
1.Man I thought that girl was sweet but my boy told me she aint nothing but a trunk monkey ho
2. Just wait till she sees my swinging trunk monkey
by Anonymous August 09, 2003
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