A lewd act in which, while a man is having vaginal sex with a woman from behind (doggy-style), he inserts the wrong end of a spiked dildo into her anus, so that it sticks up like the tail of the dinosaur from whom it takes its name.
by Phunkspace March 3, 2005
by NJoseph110 June 23, 2018
-MAN ONLY MOVE- A "stegosaurus" is a type of dick move, much like the batwing or the brain. To successfully do the stegosaurus, you must hair gel your pubic hairs into a mohawk. After drying, lie on your back (fully naked), and get a full on erection. In this postiion, with the mohawked pubes and boner in an upside-down postion, your cock+balls will look like a roughly detailed dinosaur
by Duke Gilgamesh March 11, 2008
The box that contains traffic lights, because of the resemblance of the shields for each traffic light to the plates on a stegosaurus' spine.
If you're in a hurry, use the highway, 'cos you'll have a stegosaurus at every block if you're using the local streets!
by pentozali January 6, 2007
by Cringey man May 9, 2016
An ass that is large, like a dinosaur; specifically, a stegosaurus. Not actually an ass that bears any resemblance to a stegosaurus. It’s not spiky. It’s voluptuous.
“Wow, that man has a Stegosaurus Ass!”
“...what?”
“You know, like, large. It’s a good ass.”
“Oh, okay.”
“...what?”
“You know, like, large. It’s a good ass.”
“Oh, okay.”
by anonymousstegosaurus February 14, 2021
by Cammarselle July 10, 2022