Odd looking offspring of a mixed couple. Usually people who are mixed with the White and Black race.
PERSON 1"Hey, that guy there has red hair, freckles, and light skin. But he has black facial and body features. How odd!" Person 2 says to PERSON 1,"That there my friend is what you call a MUD DUCKLING."
by Niccolai April 24, 2006
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Fan(s) of Jennifer Morrison (a.k.a JMO) and/or her character Emma Swan (in Once Upon a Time)
A: Wow! You know everything about Jennifer Morrison!
B: Cuz I'm one of the Ugly Ducklings!
by livelaughenjoy June 15, 2015
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1. A plan to strangle someone while having sex with them, perfectly timing the time you get off with the time that the person dies; ideally the last thing the victim sees before he or she dies is your face as you get off.

2. A backwards way of saying Knuckle Duster
"I really want to give Amanda a Duckle Nuster"
by old man withers August 16, 2006
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When your buddy is passed out and you glue a duck bill to his GRUNDLE. When he awakes and tries to walk the duck bill will wiggle and bite the back of his sack causing him to fall to the ground and yell, SHIT!!! The grundle bites are attacking my sack!
Billie bob (bag of donuts)Yooo Johnnie, let's give Todd the GRUNDLE DUCKLING he is passed out.
Johnnnie, sweet I got a duck bill handy!
Billie Bob glueing, glueing
5 hours later...
Todd awakes and tried to walk to the bathroom and falls over in pain holding his package...
Todd.. CRAP the grunts are attacking my SACK!
by ass hammer December 2, 2006
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to punch one's fist up an ass, with not 1, not 2, not 3, but w/ the whole fingered fist
wallner: "quentin just suckle duckled me in chris' basement"
by da ham April 21, 2006
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A sexual move requiring a duckling and two people, one with the duck on his dick and one with bread in his/her asshole. The Duckling then has to eat the bread out of the asshole, while it is at least three inches in the crevasse.
"Johnny please give me a prospecting duckling... i want to be eaten out by a duck!" said Sherry
by John Von Duchenheimer August 19, 2006
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A word used to tell someone to chill. Also used to tell them you don't agree with what they're saying. Duckling can also mean "Nigga" or "Ma Nigga"
Man, I want School Tomorrow!

Chill Duckling, why would you want school?
by endmasonsandzionist March 2, 2009
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