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A word that can be used to express almost any negative feeling. Its exact meaning depends on the context, its function is to emphasise the current feeling of the individual who is using it. It can mean sadness or disappointment but in some cases it can also mean sympathy or even astonishment.

Other form of it is "mooo" wich means an intense bad feeling
"Mooo! I have a very bad headache. I feel like im dying"
"Mo, i feel you, bro. Hope you'll feel better soon"

"Why im i still single?"
"I dont know. Im single too. Mo..."
mo by flying_toaster_ February 14, 2017
Related Words
Morgan mom Mollies monkey mo Money motherfucker mo mo Mormon mook
Someone who is unique and sexy.
Omg....fuck look at Mo sexy ass I just wanna.....uhhhhh
Mo by Nyagirl1234 April 1, 2017
A Chill, Lazy, Funny, and sometimes annoying guy! A gamer, player, and a hugger! A Mo is someone who has an amazing personality and a great person to have as a friend!
That Mo Guy is a really great person!
Mo by MohamadGamez May 5, 2017
A fat black boy with no hairline who keeps talking about Porn. :)
Mo~ "Hey, I was masturbating to Porn. I like the white girls.
Me~ "That's okay...? That's straight-up weird Mo."
Mo~ "BITCH! SHUT UP!"
Me~ "Dude your voice is killing me... you talking about porn makes me wanna kill myself".
Mo by Neo Jr. July 24, 2017
Mo/Moe (usually short for Mohammed, Morris or Maurice) is quite a random unpredictable person who just doesn’t give a fuck, doesn’t care what people think about him, but if you get on his bad side then he will fuck you up very badly as he tends to have an anger problem, he is also very talented at sports weather he is big or not. He also gets a lot of pussy and tends to be quite a fuckboy who moves on quickly. He is also very comedic and likes to have a laugh probably much more than he should.
Mo is a fucking animal, you should of seen him fight.

Did you hear mo’s joke today, it was absolutely hilarious.

How the hell did Mo just get three girls in a week.
Mo by Thom22193872254 October 3, 2017
A MO is someone who smokes a lot of pot, always chiefing, always wanting more
Dude, stop chiefing your such a MO
mo by Mia White October 11, 2017