Japanese Fountain

When you (accidentally or otherwise) catch your own semen in your mouth after busting a load.

Jimmy was masturbating vigorously the other day and gave himself a Japanese Fountain. Dude now has a new fetish.

Japanese War Fountain

When you eat nothing but chili for a couple of days while holding off the urge to take a shit and when it finally becomes unbearable you stand over your other (preferably in a bathtub) and spray your fountain of explosive diarrhea all over them.

My relationship with my old lady went to the next level when she let me give her a Japanese War Fountain