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10.
An Emily
Emily Gagnon is such a "Cotton Headed Ninny Muggins"
by Jimbo Anvil February 16, 2011
61 166
 
1.
One who thinks he is humorous and/or lacks brain capacity; a doofus
Notice how the two previous posters before me are, themselves, cotton headed ninny muggins's?
by Ctrl April 03, 2006
824 361
 
2.
1) A moron, idiot, dumbass, and overall stupid.

2) A human who accidentally got into santa's bag, and was raised by elves, who because of his human form, cannot make toys as fast as the elves and is inferior.

3) An inferior toy-maker.
Buddy: "Why don't you just say it? I'm the worst toy-maker in the world. I'm a Cotton Headed Ninny Muggins."
Elf: "No Buddy, you're not a Cotton Headed Ninny Muggins. We all just have different talents, that's all."
by AnAsian2010 December 19, 2009
307 141
 
3.
Somebody who feels like they can't do something right.
Buddy the elf thinks he is a cotton headed ninny muggins because he can only make 85 etcha sketcha's instead of 1000 like the other elves. He is NOT a cotton headed ninny muggins because he is a human as pappa elf tells him. A good example of a cotton headed ninny muggins is somebody that blows a country to pieces because they THOUGHT they had weapons of mass destruction. What you know somebody that did that? Wow then we all know a cotton headed ninny muggins!
by Cheeky Elf September 21, 2006
507 412
 
4.
a dumb elf, as coined in the movie "Elf"
"i'm nothing but a cottonheaded ninnymuggins"
by dfg January 05, 2004
74 12
 
5.
someone who is not very skilled at their job
Buddy the Elf
by Johnny Depp December 06, 2003
86 24
 
6.
An insult used by elves
Buddy the Elf: "I'm just a cotton headed ninny muggins!!"
by Papa Elf13 December 30, 2011
77 36
 
7.
a diss/insult in a funny, babyish way. It adds humer to any harsh fight and you may hear it coming from a whole range of different ages.
your such a cotton-headed-ninny-muggins! what is your problem
by stick it January 01, 2006
45 18