Birdy

Cowboy Bebop

Dragonball

Flame of Recca

Gundam Wing

Hunter x Hunter

Inuyasha

Mononoke Hime

Oddments

Outlaw Star

Ranma 1/2

Rurouni Kenshin

Trigun

Yuu Yuu Hakusho

Gonna hit it big!
Ask Gene when he's going to pay back a debt and you'll hear "as soon as I hit it big!" Needless to say, he never does, instead he ends up making this expression.
 
Added: 2/9/02 From: eBay ryosakazaki
 
Gonna hit it big!