stupidosaurus 

An animal that, while appearing to be smart, actually possesses extreme stupidity.

Teacher: Hello, class, today we're going to learn about the stupidosaurus.

Student: I already know about the stupidosaurus.

Teacher: How?

Student: Yeah, they're also called "humans."

stupidosaurus by Pseudonym "Alias" Sobriquet November 5, 2013

stupidsaurus 

Animated movement looks like a slow, awkward mechanical object, with a vacant look on ones face.

My cat, Kitt Kat, looks like a stupidsaurus

stupidsaurus by snaggletooths October 3, 2015