Goku invented this...

Goku invented "that's what she said":

http://www.manga2u.me/Dragon_Ball/9/05/

This thread is important. Post any other Goku (or dragonball) inventions, here.

Over 9000.

I believe the fusion dance was a precursor to the macarena.

Goku's farts are so powerful that he can fly on them. Just look at the brown gaseous mass that is allowing him to travel at high speeds in this page, here:

http://www.mangahere.com/manga/dragon_ball/v05/c070/2.html

Goku also scratched his crotch, out in the open, before Al Bundy did:

http://www.mangahere.com/manga/dragon_ball/v07/c098/7.html

Goku did it first!

Lol, only in a manga can a preteen boy practically jerk himself off, without giving the story a pedo-vibe.

Dem crazy Japs! 👆

Here, Goku farts very hard and for a really really long time.

http://www.mangahere.com/manga/dragon_ball/v16/c230/5.html