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)
Bennie: You bullspittin!
Don: Im serious, look!
Bennie: Nah man, thats a mockasaurus. (chuckle chuckle)