Originating from the death sound effect of an online game known as Roblox, "oof" is a common expression or response shared when one is faced with a melodramatic defeat or taken an embarrassing L in any real-world situation.

The sound effect from the game is sampled in many online videos, sounding like a small child who has been kicked in the stomach. Humor can be found in the unwavering consistency of the "oof" sound effect, as well as the obvious trauma endured by the child-- undoubtedly an odd choice for developers to include in a children's game.

This variant is for the people in the back.

a combination of the meme oof and the meme E.
It can be used as a response to the word oof.
An expression to say when you feel exasperated, or in a situation that you don't really want to be in.

Eef is an alternative to the word oof