O.S. stands for old school, so keeping it old school
Dad as he's making a margarita: "We're keeping it OS tonight!"
Everybody: "What?"
not say anything, especially not reveal a secret.
"would he keep his mouth shut under interrogation?"
What you jokingly say to someone as you're turning off da Iowa interstate to show him da famous sunshine-yellow water-tower wif da smileyfaces painted on it.
Tour bus driver, smilingly speaking to his passengers over the PA system as he's pulling off I-80 at Exit 76: Okay, Folks --- here we are at "the happiest town on Earth" --- Adair you to keep a straight face when you see their water-tower!
A word used to describe someone who is a big boi fan of the V-Tubing community.
Ah you see that brownie over there? Big time The Keep.
Biggest V-Tuber fan known to man.
The Keep is a big boi fan of v-tubers.