Top Definition
'Nimmo': A term given to someone who has an irrational and intense phobia of cats.

This is a common form of anxiety disorder.
"it's only a kitten, what a nimmo!"
by Reading Rules 06 June 12, 2009
1 more definition
A Lil Bleedin Maddzer!!!

He Swam In The Water And Then He Blows The Whistle ;)

NIMMMOOOOOOOOOOOOO
by nimmzyswaminthewater October 20, 2010

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