by Jon and lindsay July 23, 2004

by Buzzcocks Babe December 6, 2010

by MCJOKEZ January 10, 2010

A Na Na is a loud mouth, know-it-all, hateful big sister who scares you, screams when you enter her room, slaps you upside the head, makes fun of your ugly girlfriend, and makes the best food when she's pissed.
You've pranked me, slapped me, told everyone about my bald girlfriend! You're no sister, you're a real Na Na!!!
by Lil' Taste October 24, 2016

by Mona aka Ali September 30, 2005

by jebus of root beer January 20, 2007

by Kat August 22, 2003
