Probably one of the most commonly used phrases after hurting your self or realizing something shitty happened. Sometimes you just say oh shit just to piss off your friends.
Person 1: “OH SHIT”
Person 2: “What why you swearing
Person 1: “ I don’t know I just felt like it
Person 2: “Die”
Person 1: “ OH SHIT”
Person 2 “ What happened you good?”
Person 1 “NO I JUST STUBBED MY TOE THAT SHIT HURTS”
Person 2: “What why you swearing
Person 1: “ I don’t know I just felt like it
Person 2: “Die”
Person 1: “ OH SHIT”
Person 2 “ What happened you good?”
Person 1 “NO I JUST STUBBED MY TOE THAT SHIT HURTS”
by ThatMoronInTheBack November 21, 2022
Get the Oh shitmug. 
Oh shiitake toadstools is another way of saying oh shiitake mushrooms. It is also anyone anonymous that follows rule 34.
Oh shiitake toadstools. Anonymous person is searching the pokemon sucking gardevoir on sucking duckduckgo.
by Eren Yeeter December 15, 2020
Get the Oh shiitake toadstoolsmug. by Mr_Mogus August 22, 2022
Get the the uhh something sorry i forget something about the oh m.. something with m ohh itsmug. When you get so mad at someone or something you begin to rage and yell "oh you fucking asshole", but then the rage consumes your vocal cords and you temporaryilly go mute for a short bit.
by Killerwase September 21, 2017
Get the oh you fuckin assmug. 
The phonetically pronunciation of the South Korean boy band EXO. A filler line for the sad little bubble tea obsessed maknae, Sehun.
by grindnhustle October 21, 2017
Get the ee ex ohmug.