by totally_rad January 15, 2016

It's basically a word used in the modern internet word. It means that if someone says that someone is "Haha you're gay" but in this occassion, they say "No u" back, which turns their words against them.
by wtw_turtle November 8, 2018

usually said in texting or something. its used to say something back to someone but like... make it rude?
by tocixwaste November 6, 2021

by Engineer_dad February 15, 2021

No U is a way to reverse the action that somebody has done to you are said to you. Kinda like a Uno Reverse card?
by xXSCRUBYEETERXx December 15, 2019
