Uncle Napkin

When your niece is sitting next to you at McDonald's and she wipes the ketchup from her face onto your sleeve.

"I thought Alexandra was showing some affection for her good 'ol Uncle Mike but she just needed an Uncle Napkin."

by KingOfKensington February 5, 2010

Uncle Klauss

the sexual act of a male defecating in a fine leather shoe, and persuading someone to wear the shoe while he masturbates.

"My boyfriend gave me an Uncle Klauss last night, and my foot still smells!

by footbandit69 February 11, 2010

The Pasty Uncle

When you're giving it to her from behind, pull out suddenly and drop kick her so hard your feet get lodged into her vagina.

Usually happens during a hate fuck.

Emily: DUDE YOU GAVE YOUR EX THE PASTY UNCLE?!

Zach: SHIT YEAH I DID. SHE'LL NEVER BE THE SAME AGAIN!

Emily: OH GOD SO MUCH HURT

by Trixster G. Rex June 8, 2011

Uncle behavior

Creepy older men who behave like teenagers to get with younger girls.

"Why does that creep keep looking at you?"

"I don't know, he be on that uncle behavior"

by Fireyi September 10, 2014

Forever and an uncle

a long time

It's been forever and an uncle since I saw this movie.

by Nutcracker Spirit November 11, 2014

lucky uncle

Fap fap fap, lucky uncle.

Man I was bored so ya know *fap fap fap*
Dude that was a sweet lucky uncle.

by countfaula November 4, 2013

Uncle Bucked

The act of being in a picture at the time of the taking only to find out that the end result you have been cropped out.

Shit, my cousin Uncle Bucked me out of the wedding photographs!

by Apostle of Dom September 5, 2016