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 25, 2006
mugGet the cotton headed ninny mugginsmug.
a mean mean word used at the north pole with the elves
but your not a cotton headed ninny muggin!

buddy the elf.. whats your favorite color?
Buddy the elf is not a cotton headed ninny muggin.
by kkkkkttttttttt December 18, 2007
mugGet the cotton headed ninny mugginmug.
A name that describes someone who isn't a good as others at certain things
I am a cotton headed ninny muggins when it comes to lacrosse
by a dye hard logangster November 19, 2017
mugGet the cotton headed ninny mugginsmug.
A complete retard that doesnt know what the hell he/she is doing and that doesnt even deserve to breathe oxygen
"Dave your a fuckin cottonheaded ninny muggins"
by BDALE March 20, 2005
mugGet the cotton headed ninny mugginsmug.
A complete moron that can't do anything or hardly anything right.
Bud is one of the dumbest persons to have ever existed, he is a prime example of a cotton-headed ninny muggins.
by PhoenixGamer34 December 24, 2021
mugGet the Cotton-Headed Ninny Mugginsmug.

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