that's no-no 

A term implying that the aforementioned action is highly discouraged and frowned upon.
Used and popularized by Korean rapper Masta Wu in SMTM3(Show Me the Money 3), a Korean rap survival tv show.

Vasco: *performs a rock stage in a tv show especially designed for the genre of rap*
Masta Wu: That's no-no.

that's no-no by enaak September 9, 2014

that's a no-no

can't do no more omeko desu

goddamaaaaan, that's a no-no u mean omeko desu?!?!

that's a no-no by omeko June 6, 2015

That's No Good! 

Kids, there's nothing more cool than being hugged by someone you like, but if someone tries to touch you in a place or a way that makes you feel uncomfortable........

That's no good! It's your body! No one has the right to touch you if you don't want them to! So what do you do? First, you say no. Then, you get out of it! Most important, you gotta tell someone you trust, like your parents, your teacher, a police officer!

That's No Good! by ricks50 September 8, 2020

that's no moon 

A (nerd) reference to the original Star Wars (1977) movie, where Luke Skywalker thinks that the Death Star is a moon.

IT'S NOT! It's a freaking space station!

Luke: ... a moon?
Obi Wan: That's no moon. It's a space station.

that's no moon by Filip H September 23, 2007

That's No Purse 

Slang that's used when there's no big deal. There's no change, as in currency and no big deal = no change, therefore not a big deal and no purse.

"My girlfriend said that her ex-boyfriend was no purse. The dude is 6'5'' and the nicest guy. What a liar"
"My dog ran away, but that's no purse!"

That's No Purse by themgates10 July 22, 2023

That's no good

When someone tries to touch you in a place or a way that makes you feel uncomfortable.

If someone tries to touch you in a place or a way that makes you feel uncomfortable, that's no good.

That's no good by Rattus rattus non-domesticus December 22, 2020

That’s no moon 

That’s no moon is creature by Mal crow 7 it’s a flying anglerfish

The moon is wonderful today wait that’s no moon

That’s no moon by Floating megalodon 682 anims March 2, 2022