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

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

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

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