Jack-in-the-box -- Having your penis inside a woman.

Jaw-Breaker -- The ridiculously large pricks of PP.

Jeremiah's Jump-Rope -- Having a girl grab your dick and run rapidly away from you for about twenty feet then use it to skip rope... Ouch!

Jiggling Breasts -- What you see when you are in a sexual position where a woman's breasts can hang free. Say, for instance that she is sitting on your saddle-horn, happily impaling herself upon your turgid luv-lizard. When she slams her pussy onto your lap-pole her breasts will shimmer and shake. Those are Jiggling Breasts.

Jiz-Bag -- See Tod.

Jyzz-Hitsu -- The marital art (or is that martial?) training of strategic nutting. Ex: White-eye; face-hit; nose plugging; tongue-dashing; breast brazing; fondantal glazing of the anus; pube-moussing; chin-clinging;