Top Definition
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 03, 2011
1 more definition
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 26, 2011

Free Daily Email

Type your email address below to get our free Urban Word of the Day every morning!

Emails are sent from We'll never spam you.