a short or avg. height girl who is extremelyaggressive and in most cases quite athletic and strong. always a bitch and sometimes a butch.
an aggressive girl who is flimsy won't do, she has to be physically thick like a tree trunk in that she will always bark a tough game and in many cases bite a vicious game as well.
Bruce Lee: aiyo homey, why didnt you stand up tothat bitch?
Jose Contreras: u must be jonin! she's a fuckin' brontosaurus brawler, she could take on the Bears O-line for chrissake.
"Look at the Brontosaurus Knuckle on her!"
"I saw Rosie O'Donnell on the cover of People. Tight sweatpants and total Brontosaurus Knuckle evident."
"She went from Camel toe to Moose knuckle to Brontosaurus knuckle in 6 short months."
The Dirty Brontosaurus is where you get someone on their knees, & put their arms behind their head sticking straight up. You then bind the wrist so they can't put their arms down. Use their arms to pull their head toward you forcefully while they give you a BJ.. Finish on their face, or back, or wherever might imply "dirty" to you, then leave them laying face down, arms out, like a long neck Brontosaurus.