The Dinosaur is a sexual act when said man and woman lie upon each other, the woman positions herself on the bottom while the man on the top, the man then uses his hands to recreate the movement of a T-Rex, and spreads out his fingers in a claw shaped way, then let's out a vicious growl while doing this he moves his hands closer to the woman's face, however doesn't allow his fingers to touch her, instead he gently brushes her face to stimulate sexual pleasures.
Hey Chris, heard you went the dinosaur on her last night! haha!
Jeffery, I'd like you to do the dinosaur on me.
Jonathan, Rawr Louder, Be a T-Rex for me!