Jackoffasour 

A weird duck billed creature with webbed feet from the television show South Park.

The jackoffasour escaped from his cage.

Jackoffasour by puredude3 May 19, 2007

jackoffasaur 

1. Thought to have been extinct, these annoying creatures with big lips and bald heads can pop out babies faster than an Atari 2600 rapid fire controller extention!

2. BoooooWHOOP!

Look out it's coming right for us!

jackoffasaur by Gimble March 2, 2004

jackoffsturbate 

A combination between the phrase "jacking off" and the word "masturbate." Only used when you're extremely horny.

Holy shit, watching that porno made me so damn horny. I'm going to go home and jackoffsturbate.

jackoffsturbate by Lon August 18, 2005

jackoffasaur 

Jackoffasaurs are humans from the future who annoy everyone except Cartman and breed like crazy.

An example of the future of the human race, which isn't particularly good at anything. Jackoffasaurs symbolize the result of the dumbing down of society which is taking place.

jackoffasaur by WalkerTexasToast July 19, 2009

Jackoffasaurus 

uber douchebag, someone who is begging to be slapped in the nuts but you cant so you call them a Jackoffasaurus.

Also the better form of calling someone a jackoff.

Or someone who jacksoff to much.

Billy:Dude Your Shirt is gay.
Sean: stfu you Jackoffasaurus.
Billy:*Cries
Alex:Nice dude

Jackoffasaurus by Sean Wheeler January 14, 2008

jackoffasaur 

One of those stupid little creature that go thwooop on south park

That Jackoffasaur acts very stupid

jackoffasaur by Dan November 5, 2003

jackofasaur 

an albino faggot who sleeps with his mother and jacks off to his sister and likes bonin guys in the ass

oh shit cover your asses here comes the jackofasaur

jackofasaur by crash April 26, 2005