Lolsaurus Rex 

An ancient giant hilarity that still stalks the earth today.

Friend 1: I just got pelted in the face with a sandal.

Friend 2: hahahaha!!!! Lolsaurus Rex!

Lolsaurus Rex by smartboy369 May 4, 2007

Lolosaurus Rex 

A larger, more stupid species of the lolozaur family, known for its haunting, beastly cry between other lolosauruses; LOLOLOLOLOLOLOLOLOL

Man 1: "What in the fuck is that?"

Paleontologist: "Oh shit, lolosaurus Rex!"

Lolosaurus Rex: "LOLOLOLOLOLOLOL"

Lolosaurus Rex by Perry H. Christ September 27, 2008

Loposaurus REX

A person who's brain function is well below the average of normal due to slow learning capabilities and lacking attention span.

Dude why did you move the furniture back inside the house and why is it covered in plastic?? I told you we were painting the house today and to make sure all furniture was moved and covered. That's why we moved most of the furniture outside yesterday you loposaurus Rex

Loposaurus REX by Rcamacho87 October 18, 2025