Top Definition
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)
by SychoSurge January 13, 2009
7 Words related to Mockasaurus

Free Daily Email

Type your email address below to get our free Urban Word of the Day every morning!

Emails are sent from We'll never spam you.