1. To phonectically say; "stfu".
2. A shorter and quicker way to say; "shut the fuck up".
Amy: "Nick, I don't want you to cum on my face!:("
Nick: "STUFOO, bitch!"
Alicia: "But, baby, I don't want you to go out to the bar!"
Vince: "I don't care... so, stufoo."
1. The way to pronounce "STFU" in real life.
2. A way to say "STFU" without it getting censored.
1. Hey kid, would you do me a favor and stufoo?
2. Stufoo, you Vikings fan. You haven't won anything. (I didn't want to get caught by the autoflag mods)