Piggy fucking 

When you fuck a fat girl and you make her keep her shirt on so you won't see her fat jiggling.

I was piggy fucking Keisha all night, she is a big bitch.

Piggy fucking by Lo77 October 28, 2014

Fucking piggy

a form of expression or exclamation
mild to strong obscene words used to refer to a dirty slutty whore or cheap girls doing sodomy act.
Can be abbreviated as FP or can be written as fucking pig that would mean the same thing.

A: Ann would love to share her man to another...
B: Ohmahgosh such a fucking piggy!

Fucking piggy by primaverabebe September 10, 2010