expressing emotion, usually dissatisfaction
a: "I don't have a fortnite account"
b: "oof"
Originated in the free online game, roblox, oof is a word used when you die in a video game (oof is the death sound in roblox) oof is now used to reply to someone when you have nothing else to say or don’t know what to say.
Mom: Son, grandma died yesterday.
Son: oof
A noun, used to desribe something bad happening
Tom: I hurt my finger
Jack: OOF
when you don't know what to say you say oof
Friend:"my mum just died"
me:"oof"