(Noun) Elf that is bad at making toys and or other elf qualities.
I can't make that many toys! Face it, I'm a cotton headed ninny mugger
by Sarah and Molly July 11, 2008
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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
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From the movie "Elf", with Will Ferrell, who is called a cotton headed ninny muggins by one of his elf friends at Santa's workshop.
by HeathxAnna January 11, 2009
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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
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