MelonSaurus 

A Melonsaurus is an animal that is a cross between a dinosair, and a Melon. They are rarely seen, and usually are seen firin their lazers, and destroyin stuff. The most common Melonsaurus is the Milin, that can only be seen in Pensylvania.

Damn, my MelonSaurus got out and destroyed half of Tampa!

MelonSaurus by Rdawg00014 September 3, 2010

meosaurus 

(n). A loud, obnoxious, self-absorbed person that dominates a social situation and won't stop talking about themselves. A narcissist that gobbles up all of the attention and conversation from the group.

Man I was trying to talk to this hottie but some damn frat boy meosaurus kept shouting about his recent promotion and new Mercedes.

meosaurus by JDP123 March 5, 2011

Megosaurus 

A girl in my class who resembles a stegosaurus, you know, fat, ugly, and has a huge loose vagina.

I just saw a Megosaurus, i almost cried.

Megosaurus by peter stednik June 10, 2004

Memosaurus 

A meomosaurus is either an in your face freaking crazy person who is obsessed with memes ad nauseum. Or a more friendlier description involves a quirky meme obsessed person who you can forgive for been obnoxiousnessly meme obsessed because theyre really hot and of the preferred sex.

Dam that lady sure is cute, shame shes such a creampuffin memosaurus!

Memosaurus by awakekiwi June 28, 2016