When U don't have anything else to say but that one sound u keep on hearing when u die on ur christian ROBLOX server.
by Dictionary.com/;MC-REN-213-C^ January 8, 2019

Whenever something didn’t go your way it’s going going to be almost impossible to fully recover from.
by Trashist May 24, 2018

by PopeGod March 14, 2018

An expression uttered when something is so cringeworthy, depressing, or hard to watch that that the expression OOF doesn't do it justice.
by theRealColonelSanders December 24, 2018

by Yeetus fetus deleteus January 24, 2019

when you see someone fall, you may say big OOF. when you fail a test you may say big OOF, or someone says something not funny, you can say big OOF. If you think you can apply the word big OOF to a sentence, you can probably say it.
by BlueStripes March 15, 2019

Used to express your feelings about a subject. If the word 'oof' just doesn't sum up the situation well enough, use 'BIG OOF' instead.
by ARCHIE JR IS A GOD January 13, 2019
