A legendary, but definitely not imaginary, elf who leaves dumps for good little children who believe
by Crappy Chris February 27, 2010

1: Did you hear about johnny?
2: Nah, what about johnny?
1: He was at jens house and jens big brother gave him a slippery uncle!!
2: Ahhh No way!!! do you know what was used?
1: hmm... since theyre remodeling there house it was either a 2x4 or a piece of tile.... maybe a drill... im not sure.
2: Nah, what about johnny?
1: He was at jens house and jens big brother gave him a slippery uncle!!
2: Ahhh No way!!! do you know what was used?
1: hmm... since theyre remodeling there house it was either a 2x4 or a piece of tile.... maybe a drill... im not sure.
by Ink Slinger December 2, 2011

Generally referring to someone who is being an asshole/dick head, in the metaphorical aspect they are a big piece of shit. It can also be used as a code name for a coworker, or a person with a managerial position that often abuses their authority in a unprofessional and/or uneducated manner.
I bet Uncle Chud sits in his office smoking a corn cob pipe while sniffing his own farts. That asshole denied all my time off requests, what a fucking turd.
by Uncle Renegade August 23, 2016

The offspring of a sister and brother. Defines the blood relationship between the father and son. The father is both his uncle and father. Uncle comes first because no family in the right mind would tell the boy his mother's brother is his father. They would introduce the father as his uncle.
by Lee low July 6, 2017

by High school joke group November 9, 2017

Daughter; When is Uncle Ryan going to get here?
Mother; You know he's not your real uncle right?
Daughter; He's my Pseudo-Uncle.
Mother; You know he's not your real uncle right?
Daughter; He's my Pseudo-Uncle.
by Otterboi December 10, 2015

Uncle Jason is what happens when you’re molested, or raped, by your babysitter, like by an uncle or close family member.
The boys look rather withdrawn today, they’ve been acting rather odd since we had Uncle Jason babysit for us
by Professor Switzleheimer December 22, 2021
