A man who is both the father and the uncle of his offspring as a result from impregnating a woman and her sister.
"He's a dad! He's an uncle! He's Dustin the Duncle!"
by Anony-moose July 20, 2013
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The name for a man who donates his sperm to his lesbian sisters wife/partner/whatever, there by becoming both dad and uncle of child.
Rachel's brothers Parker and Beecher
by Rachel and Alex January 20, 2004
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a person who is a father(dad) and also an uncle to the same poor inbreeded child!! (tramp)
Mary and Samual get married and have two children...........these two children are called tom and gina......they are bro and sis, but they have sex. and have a child called molly. Tom is now a duncle and poor molly in an imbreed and is very confused
if u are related to a duncle ur family is compleatly and utterly fucked up
by total legend August 5, 2006
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a dad who marries one sister, divorces, then marries the other sister.
My dad is my aunt's ex-husband. That makes him my duncle.
by Ry-G. November 4, 2010
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A man who's son is also his nephew.
My duncle tried to rape me last night, no homo.
by Hova Jr. July 5, 2005
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to take a shite
hey i'm busting for a shite hurry up in the bathroom i need to go see uncle duncle asap.
by Dan the Man From Manchester February 17, 2018
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When a mans penis gets chopped off in a pencil sharpener
Stephen, Being on crack, gave himself a Pe Duncle while writing a essay
by TheWhippedCream April 1, 2004
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