Uncle Sloppy Sam

A sexual act in which a person gives a blowjob while humming the U.S. national anthem.

Man: Give this soldier an "Uncle Sloppy Sam"!
Soldier: What the hell is that?
Man: It's where he gives you a handjob...with his mouth while humming the national anthem!

by TontoTheScalper May 3, 2011

Uncle Sloppy Sam

giving someone a hand job, with your mouth, whilst humming the national anthem

For the 4th of July i decided to give my boyfriend the ultimate patriot's gift, an Uncle Sloppy Sam

by TruGun May 27, 2011