A person who wants to have sex all day long. They are either thinking about it. Working toward getting it or having it at almost all times!
I was rubbing Alicia's shoulders...next thing you know I've got my pants off getting a smoker! That girl is a sex t-rex, we fucked all night!
It wasn't until the next morning I realized how many miles of cock had already beat that moose knuckle into submission!
by RT2 April 23, 2007
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When laying in bed with someone, facing one another, it is the awkward positioning of one's interior arm (resembling the arm of a T-Rex) which often prevents two people from getting as close as possible.
I wish I could get closer, but I've got the No Sex T-Rex arm goin' on. Maybe we could just spoon?
by bunnyblade October 16, 2010
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