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.
by Sherryl H September 15, 2019
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