Top definition
The best friend of a mother who just had her baby. The baby calls the moms best friend "Auntie" even though there is no blood relation. You become a Fauntie.
I'd like to introduce you to my new son, he's 5 weeks old. And this here is my best friend in the world, met when we were 12, she's the baby's fauntie"
by slimhaydee January 06, 2011
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