Top Definition
a person who is very sassy and therefore deserves the degrading position of a nanny. this is the negative use. the positive use is like calling your friend idiot even though you are kidding.gaskin
Gibby: Wow! u hit me in the head with that plum!
Guppy: sorry, i love u! <3
Gibby: thats ok u sassy nanny
by biggy is alive September 22, 2010
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