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