Necessary comeback after roasts such as "ur mom gay". Once "no u" is said it automatically turns the tables so the person that said "ur mom gay" is permanently scarred for the rest of their life because their mom now gay. This roast proves you as one of the highest standards in roasting.
Normie: uR mOM GaY Memeexpert: no u
Normie: *FUCKING EXPLODES*
The ultimate, only, absolute counter/rebuttal/comeback to every possible argument that could ever be conceived.
If you say No U, you win. It’s as easy as that. Your opponent will be too overloaded with intellect and intelligence to process anything, and they’ll die.