BROnoSAUR 

A BRO that has enter the later part of life but has not yet reach a beer pong championship and still chases the dream

That BROnoSAUR is dating a 18 year old that's just sad

BROnoSAUR by Anon Frazier January 24, 2011

brosaur 

(n) a jurassic beast that disguises itself with ray bans, baseball hats, pierced ears, nikes, popped collars, and beer. Often seen preying on women or running in a flock of other brosaurs at a party.

Look over there! It's a brosaur in its natural habitat by its watering hole, a keg of Natty Light!

brosaur by blithering dildo March 27, 2011

bonosaursus 

A boner.

Shit! I just got a bonosaursus!

bonosaursus by djaksfjklajfafaf March 10, 2011

bobosaur 

The jizzing Pokemon. Fiendish by nature and highly uncontrollable, the Bobosaur faps on everything and anything out of necessity. If Bobosaur goes too long without fapping, it will spaz out and self-destruct in an explosion of jizz and spikes from it's head.

Bobosaur, I choose you! Bobosaur, use hydro pump... ;)

bobosaur by Elementary Fruit Juice December 19, 2010

boobosaurus rex 

noun. A rare species, often found in liberal arts classrooms, malls, gyms, movie theaters, Darque Tans, and other such useless places.

They are characterized by large massive amazing tits and really short skinny arms and bodies. Their enormous boobies often prevent them from walking completely upright and hence they are forced to walk hunched over resembling a tyrannosaurus rex.

Wow id love to cum on that boobosaurus rex's tits.

boobosaurus rex by utop12 February 14, 2008

brontosaurus burger

A big ass burger

I wouldn't have asked for three burgers if I knew you were cooking brontosaurus burgers!

brontosaurus burger by bradhannah August 4, 2008

Brontosaurus Trotter 

The largest and worst kind of camel toe ever imaginable.

"Good God, have you seen the Brontosaurus Trotter on that rower! It nearly snatched both my eyes out their sockets!"

Brontosaurus Trotter by Smitch26 November 15, 2012