"Oof" is a common death sound, reffering to the popular online MMO "Roblox". It is used in many memes and quite frankly, used when you dont know what to say to something unexpected or cringy.
Pablo: Hey, have you noticed that whenever a conductor ends the song, they t-pose for half a second?
John: Oof.
John: Oof.
by Tpose.exe October 2, 2018

<Tamaranai died level 1 killed by snake>
<Mdantos> OOF
<nork> OOF
<DeltaRotMG> LOL WHAT A NUB OOF HAHAHAHAHAHA
<Mdantos> OOF
<nork> OOF
<DeltaRotMG> LOL WHAT A NUB OOF HAHAHAHAHAHA
by Oof oof oof January 25, 2018

The term Biggest Possible Oof refers to the biggest and loudest Oof possible in this Universe. This is even bigger than the MEGA OOF. The term can also be used as onomatopoeia.
Bro 1: Yo bro, ya girl just cheated on ya
Bro 2: MEGA OOF
Bro 1: Also Trump got president
Bro 2: Biggest Possible Oof
Bro 2: MEGA OOF
Bro 1: Also Trump got president
Bro 2: Biggest Possible Oof
by My name is Moe Lester January 6, 2019

Person 1: “My dog died.”
Person 2: “Oof.”
——————————————————————
Person 1: “The only thing smaller than that is (name)’s IQ.”
Person 2: “Oof.”
——————————————————————
Person 1: “You failed the test.”
Person 2: “Oof.”
Person 2: “Oof.”
——————————————————————
Person 1: “The only thing smaller than that is (name)’s IQ.”
Person 2: “Oof.”
——————————————————————
Person 1: “You failed the test.”
Person 2: “Oof.”
by Hawkeye4 March 7, 2019

by Whooda hoe? Idaho January 26, 2018

Le Roblox
oofer gang oofer gang oofer gang oofer gang oofer gang oofer gang oofer gang oofer gang oofer gang oofer gang oofer gang oofer gang oofer gang oofer gang oofer gang oofer gang oofer gang oofer gang oofer gang oofer gang oofer gang oofer gang oofer gang oofer gang oofer gang oofer gang oofer gang oofer gang oofer gang oofer gang oofer gang oofer gang oofer gang oofer gang oofer gang oofer gang oofer gang oofer gang oofer gang oofer gang oofer gang oofer gang oofer gang oofer gang oofer gang oofer gang oofer gang oofer gang oofer gang oofer gang oofer gang oofer gang oofer gang oofer
by what are you doing today my fr November 7, 2018
