A very short guy who is pretty resourceful. He can crawl through your chimney into your house. Usually he has a very small dick, but girls will claim he knows how to use it. He will also somehow manage to always have connections for the most random ass things, but can disappear for months at a time. When the cops try to pull him over, he runs away.
Hey man have you seen that short guy who has been recently running from the cops on i40?

Yeah man! He’s definitely a Duncan!
by MoneyHippo January 21, 2019
Get the merch
Get the Duncan neck gaiter and mug.
One with a strong attitude. Someone who thinks they know it all.
Wow quit being such a duncan today.
by justinbitchbaby August 04, 2012
Get the merch
Get the Duncan neck gaiter and mug.
A ignorant, stupid person that believes they know more than they do, their physical strength blinds them to the world outside their ego, they emphasis independence when they are reliant on others for support and worst of all they are narcissists.
that Duncan is full of himself
by Jellyfishsuck December 01, 2015
Get the mug
Get a Duncan mug for your cousin Riley.
The pile of shit left beside the toilet at Myers by some punk ass kids.
The act of crapping on the floor, to annoy other patrons and janitorial staff of public washrooms.
I was out grocery shopping with the old lady and wet to the can. Some jerk laid a Duncan.

Just for kicks, my buddy left a Duncan at a Walmart.
by Dynamite65 July 20, 2014
Get the mug
Get a Duncan mug for your father Bob.
The philosophy of some people called Duncan who believes in everything that is beautiful, wonderful, just, kind, total freedom for anyone who is cool, top quality, the best in the world (or at least close) etc. Duncanists hate and despise anything bad, low quality, ugly, and believe that assholes like that who believe in that shit should spend the rest of eternity in their self-inflicted hell. And we don't care (ref Sex Pistols/Malcolm Maclaren)
You see that cool girl /woman over their. She follows Duncanism. Isnt she gorgeous
by an0n13u0932u5u4bf2kjrb v2kjbde September 10, 2019
Get the merch
Get the Duncanism neck gaiter and mug.
A nickname for a family of very similar looking people that have possibly inbred.
Phillip: "Did you see them?"
Average Joe: "Yeah they all looked the same!"
Phillip: "The Duncans or what?!"
by Philpac September 10, 2008
Get the mug
Get a The Duncans mug for your grandma Nathalie.
A stupid motherfucker with a tiny dick who thinks he's awesome but is actually super gay
by Not gwyneth February 22, 2017
Get the mug
Get a Duncan mug for your bunkmate Bob.