Japside 

Japside has no real definition however, it is often used as light hearted slang on genitalia.

Knowledge of It's origin is not known.

"That guy just came out of nowhere and flashed his Japside at me!"

Japside by Tootsie April 17, 2005

Jawside 

Jawside is either side of your jaw

1: he's pissing me off you know
2: just give him a slap in the jawside!

Jawside by JawlessToaster March 20, 2017

Jap Side

Jap Side is a term used as a replacement for asshole.

"Go take it up your Jap Side"
"No"

Jap Side by NUCL3AR May 17, 2022