What is Jellybox?
1.
A completely useless plate in which jelly is served. Commonly called jellybox as it can actually keep it on the plate without letting the jelly slide. It is a total waste of money and plastic, or glass, or whatever it's made from.
1: Ah, shit. The jelly ran off the plate.
2; That's why you need a jellybox, dumbass.
See
2.
the female vagina
So I stuck it in her jellybox.