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43.
mo
1. short for mom, specifically used to talk trash about someones mom when you're so fucked up your words are slurred so you just take the lazy way out.

2. short for more in the same instance, usually referring to more of whatever substance has gotten you so fucked up
1. "Yo i just banged your mo last week."

2. "Give me some mo"
by Yigstein's Money February 17, 2011
 
44.
mo
verb, "to do a mo", to fail at ones objectives - referencing Mo the bartender in popular cartoon sitcom "The Simpsons"
guy 1: hows your coursework going dude?

guy 2: I quit university...

guy 1: What with only 6 months left to go??? You doing a mo man
by warblings December 05, 2010
 
45.
Mo
Missed oppurtunity usually in regard to an attractive male or female that you could have hooked up with.
"Did you see that girl?"

"Yeah man, total MO
by Amanda0311 September 29, 2010
 
46.
Mo
someone who cheers up the Intapeople offices with his wit and wisdom.
"Every office needs a Mo"
by The Amused Co-Worker April 10, 2010
 
47.
Mo
The act of Making Out with someone. There are many different variations of Mo-ing (i.e. the Slow-Mo, easy-Mo, whoa-Mo).
Did you Mo last night?

Yeah, Felix and I Mo-ed on the dancefloor. Definitely a slow-Mo.
by seriouslyawkwardturtle March 14, 2010
 
48.
Mo
A cool guy who always knows what to do in every situation. The complexity of his personality makes up for the simplicity of his name. He has many secret hobbies and is good at most things he does. Everything he achieves is a result of hardwork and passion.
Did you see that?

Dude, you totally went all Mo on his skinny white ass.
by Pro-mo February 04, 2010
 
49.
Mo
Short for mustache. The term "mo" has gained notoriety and been propelled to international fame by the Movember movement.

Originated in Australia, Movember is an annual campaign to raise money for mens' health issues; notably prostate cancer and testicular cancer. Every year men across the globe begin November 1 with a clean shaven face and spend the month growing and grooming a mustache in an effort to raise awareness, and money.
Dude, check out that hideous Mo on school janitor.

Today when I took my Mo to the gas station a little girl screamed at the sight of us and hid behind her mother.
by Yosemite.Sam October 19, 2009