a dumb elf, as coined in the movie "Elf"
"i'm nothing but a cottonheaded ninnymuggins"
by dfg January 6, 2004
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A bafoon; someone who makes a simple mistake or falls for a childish gesture. A fool of sorts.
"Im such a cottonheaded Ninnymuggins for not realizing that!"
by TheWillBird September 4, 2018
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Reference to the movie "Elf"

meaning; annoyance, party pooper

A silly way to tell someone they are being petty, or of slight annoyance

In the ways of the elf, an impolite, rude, insulting term to describe someone rebellious, or with bad behavior
Please?!?
No.
Aw, C'mon don't be such a cottonheaded-ninnymuggins!
by czecsnut January 22, 2019
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dumb or foolish. ninnymuggins doesn't really have a meaning.

its a funnier way to say silly
sorry i'm late, my car was being such a cotton-headed ninnymuggins.
by scuba steve December 24, 2004
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A lazy individual who can’t pull their own weight. Calling someone a cotton headed ninnymuggin is the equivalent of calling a blacks person a Nigger.
Which one of you cotton headed ninnymuggins smoked my last pack of newports and drank my malt liquor. I’ll bust a cap in your cotton headed ninnymuggin ass when I find you
by White Christmas May 13, 2022
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