Mockasaurus 

An excessively small penis which was claimed to be, by the owner, a very large penis (or cockasaurus)

Don: Yo I got a cockasaurus.

Bennie: You bullspittin!

Don: Im serious, look!

Bennie: Nah man, thats a mockasaurus. (chuckle chuckle)

Mockasaurus by SychoSurge January 13, 2009

momasaurus 

over protective, yet micro-managing mother who uses guilt to try and make you change your mind

Everytime I try to explain to my momasaurus my future plans she gets upset and then tries to discuss how if I do it a different way my life would be easier.

momasaurus by ooober goober March 25, 2010

Cockasaurus 

Any person, male or female, with a penis that is better measured in metric tons than inches.

Also see "Zoah"

That guy I went home from the bar with last night was a real Cockasaurus. He tore my taint in half and now I'm shitting out of my box.

Cockasaurus by Zarr January 20, 2004

mackasaurus

a total playa. A guy who just spits game nonstop.

-Did you see scully hitting on those sophomores last night?
-Yeah, he was being a total mackasaurus.

mackasaurus by fukgoombchicks November 10, 2009

Mika (Mikasaurus) 

The most amazing non-professional singer in the entire universe. He is also the last remaining Mikasaurus in the entire world. He's really nice and funny and awesome at everything. He will completely deny these facts because he's too modest. He's amazing and I love him. (:

"Where is Mika (mikasaurus)?"
'Off being amazing."

Mika (Mikasaurus) by SummerRobbins770 August 2, 2010

Mockasaur 

The owner of a mockasaurus. One who claims to have a large penis (cockasaurus) but it discovered to have an average or below average endowment (mockasaurus).

Bob: Yo I got a cockasaurus!

Mary: TAKE IT OFF NOW!!!

(next morning)

Mary: you fucktard Mockasaur, you lied to me and took my virginity with ur little mcokasaurus!

Bob: You're 38 and a virgin?

Mary: Ha! Joke's on you! I'm 58! Here, hold my dentures.

Bob: Is it cold in here?
Mary: Dont make excuses...

Mockasaur by SychoSurge January 13, 2009

Cockasaurusrex 

A dinosaur from the jerassic period with few preserved fossils, its cock is so large it is said to be able to knock out any dinosaur with one hard swing of its massive penis

cockasaurusrex defeated the spinosaurus again! damn!

Cockasaurusrex by uncle sams cousin May 2, 2011