jackovasaur 

The most annoying creature in the entire universe. From a horrible episode of South Park.

Jackovasaur mating call: "DOOO-WOOOOOOP!!!!"

jackovasaur by n00b August 14, 2003

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

jakovasaurus 

A dinosaur type of thing that shootes about 30 babies out when its pregnant and say baooo wooop all the time

The jakovasaurus jacked off.

jakovasaurus by PlayDohMan May 9, 2004

Jackovasaurus 

An annoying yellow thing that doesn't know how to socialize and the last of its species was found in South Park, Colorado. Also used by the creators of the TV show South Park to make fun of Jar-Jar Binks of Start Wars

Doo wheep! Mesa Jackov! Doo wheep!

Jackovasaurus by Benignvirus June 14, 2004

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