look up any word, like dirty sanchez:
 
2.
Grandmother
I love my Grandpa and my Nonnie.
by Nathan December 25, 2002
 
1.
Grandmother in Italian
Nonnie Stolichinaya passed on her love of Vodka to her grandson Scott.
by Fancy Pants 8 March 30, 2006
 
3.
Another word for "anonymous". Used to address friendly people hiding their face behind the gray icon on Tumblr, or hiding their name behind the italics on LJ.
Ignorant Friend: Oh hey, I saw that anon person who wrote in your ask box last night.
You: Yeah, my nonnie was really nice.
by Banana_Splits_of_the_Week August 23, 2011