alyssasaur

Evolution of what is formerly known as Alyssa.

A dinosaur-like female human being always in a ravenous state of hunger after sandwiches, pita bread & peanut butter, and cheese.

Runs in her free time, runs whenever another person tries to outwalk her.

Says everything twice; stomps her foot on the ground when agitated.

Deep.

(Seeing a girl run)
Whoa, look at that Alyssasaur go.

alyssasaur by shortdinosaur June 18, 2012

assasaurus rex 

A woman with an ass so big that it looks like it's own person.

Guy 1: Damn she gotta FAT ass, she got a dounk
Guy 2: Naw man that's an assasaurus rex right there

assasaurus rex by kdakid May 26, 2009

Assasaurus 

A gay dinosaur.

The paleontologist unearthed a fossilized bone in the rectum of a dinosaur and realized he had discovered an Assasaurus

Assasaurus by Hogindas August 1, 2015

Assasaurus 

A dinosaur with an abnormally large ass; also can be a name for an asshole or one who is being an asshole.

"Goddamn you are being a total assasaurus!"

Assasaurus by nunnya business April 30, 2008