'Yuh uh' is the ultimate comeback to 'Nuh uh' Although it may not be as powerful as 'Nuh uh' it's still a powerful comeback.
Person 1:Nuh uh
Person 2:Yuh uh
Largely used in Philly to describe a pair of sweatpants without pockets. One would endure lengthy insults when found wearing such pants.
I know you did not come to school wearing those Uh Uhs!
Those Uh Uhs you wearing are tight as s**t.
Me: Can you hold this in your pocket for me?
Him: Uh uh
when someone does or says something stupid or gets out of line.
person: jacob got arrested yesterday.
other person: uh uh he stupid
the sound jeffy makes when he smackes his diaper
hey daddy uh uh