A term which can be used as an insult I.E calling someone a dick head. Dick head in this sentence could be replaced with penissaurus.
by TheLegitDavid April 23, 2014
Get the Penissaurusmug. A small man with a giant ego and a even smaller penis. Arrogant, unknowledgeable, illeterate, incompetent, moronic, illogical, can be seen making monkey faces and picking his nose on live TV. Directly releated to, dickhead, penisface, ignoramus, pinnhead and superchicken.
Jim: I can't believe that George Bush is our president.
Pat: Yeah, everybody knows he's a Penissaurus Maximus.
Pat: Yeah, everybody knows he's a Penissaurus Maximus.
by Cal Cahoones April 7, 2005
Get the Penissaurus Maximusmug.