add it to the end of anything to give emphasis that this person does it too much or too anything
Or at the end of a name to show how big they are
Rex is also added to the end to give more emphasis
I was yak-asaurus-rex last night, don't remember much.
Do you know Craig-asaurus? That niggaz huge.
Used to emphasize how absurdly big some thing is, or a feature that dominates someone personality.
"Ginny is a Cuntasaurus rex"
"Oh yeah! The biggest cunt I ever met, and her friend Jill is a Slutasaurus"
"She really likes her men to have a cockasaurus"