uncle leo 

Jerry Seinfeld's somewhat eccentric and annoying uncle in the hit TV series "Seinfeld."

Uncle Leo, to Jerry: "Are you ashamed of your Uncle Leo?"

uncle leo by DirkD January 24, 2007

Uncle Leo 

Law enforcement. From the common abbreviation "LE", and inspired by the name of the Seinfeld character.

"Watch your speed on Route 9, Uncle Leo is all over it tonight."

Uncle Leo by Blather July 2, 2009

Uncle Leo 

Like the Dirty Sanchez but you are taking a girl from behind and stick two fingers in her butt, reach around and swipe eyebrows on her face, slap her on the arse and say "Hello Jerry! You don't write, you don't call"

She was a huge Seinfeld fan but not after I gave her the Uncle Leo

Uncle Leo by Frankeroo October 28, 2010

Uncle Leo, you know the Lawyer. 

The act of having sex with a full grown midget, then afterwards you shove the midget into a box and send it to anywhere in the world via the Postal Service.

Uncle Leo, you know the Lawyer. Yeah I perform those all the time.

When have you performed a "Uncle Leo, you know the lawyer"?

Well this weekend after I got done banging this Dolly Parton look a like midget I put her ass into a box and sent her ass to Nova Scotia.

Uncle Leo, you know the Lawyer. by Dagwood Bumstead October 5, 2012