Do a number 9

When you suck your own peen. An alternative way to saying “go fuck yourself”

Tom: “Do a number 9. “
Jerry: “Fuck you too, man”

False flexing

When somebody flexes with items that they stole from somebody else

"Hey! Did you see Sidh's new AirPods??"
"No, he's just false flexing-he stole that from coach"

Kitty skin boogie

When you lightly touch your cat's fur or tickle it in any way, which causes your cat's back skin to wiggle

"Hey lemme show you my cart doing a kitty skin boogie"
*lightly touches her cat's fur*
*cat does a kitty skin boogie*