Combination of the terms femboy and booty .
A fembooty is male butt so voluptuous it makes him appear feminine.
Marc: Damn! Look at her fat ass!
Finlay: Also look at the rest of "her" body. I'm pretty sure that's a trap.
Jamel: He's actually pretty hot. I'd still smash that sexy fembooty.
Nickname given to bales of marijuana thrown overboard or out of airplanes. Origin is reportedly from members of the US Coast Guard in the area of Southern Florida.