A fork of Rural Dictionary
When a dude and babe are having sex, and the pre-come, natural lubricant, and eventual ejaculation turn the babes pussy into a "juicebox". added to this becuase of the "juicebox" a squelching noise may be heard while the dude pushes his dick back and forth.
"emily needed to clean up her juicebox after the hot sex fest her and joey had"