Gi-Jumbo 

Freaking Huge!!!!

Similar words: Gi-Normous, Gigantic, Gi-Normic, Gi-Mungous

Dat Hamburga, it Gi-Jumbo!!

Gi-Jumbo by Supa Diesel May 12, 2007

G.I. Jimbo 

The less buff, less handsome, gawky looking G.I. Joe that has no military experience and thinks his machine gun shoots nerf balls.

Also used to describe a jock wannabe.

Look at him in that football uniform, pretending he knows what he's doing. What a G.I. Jimbo.

G.I. Jimbo by ~*erin*~ April 10, 2004