A old man who masturbates to baby porn
Oh Clayton stop beating your meat to that poor child!! You are being a Nunu!
by the Nunu king February 28, 2015
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Someone who snorts a lot of drugs, like the hoover in the Teletubbies, Noo-Noo who went about snorting everything.
That boy is a real nunu head, hes always snorting.
by WarlockHeadlock March 01, 2012
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A female body part -that is full of milk- in which a baby breastfeeds upon. Pronounced "new new".
"She is feeding the baby with her nu-nus."

by Zotik October 08, 2008
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