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1.
Blackout Makeout

The act of making out while blacked out, as a result of extreme intoxication. Usually only remembered by the BoMo-er's less inebriated friends and/or documented by photograph.

Ashley: "You totally BoMo-ed in the bar last night, you crazy rager."

Maya: "Jealous? Was he a beautiful baby?"

Ashley: "Yeah, right after you credit carded him. He was probably a dad."
by Maya and Ashley July 03, 2006
 
2.
Slang term for the English coastal town BOurneMOuth.
I asked Dave if he was coming into BoMo for a drink on Friday night after work.
by afcb stu October 20, 2006
 
3.
short for bowel movement
Dude I just had the greatest bo mo ever, toilet water didn't know what hit it
by bozheng July 27, 2011
 
4.
A boring motherf*cker.
What a BO-MO, stop talking about the weather and man up.
by whenyouwere12 September 06, 2010
 
5.
Mnemonic device for "Black Out Make Out". As a verb refers to when someone is so intoxicated that they makeout with someone they ordinarily would not. When this person realizes they are in fact making out, they need to stop immediately and leave the premises. When used as a noun it refers a person with whom someone would bomo.

Bomo's are a good thing. People who are bomoed should be flattered.
Verb: Q: "Did you bomo last night?"
A: "I don't remember"

Noun: Q: "Do you like him?"
A: "No, he's just a bomo."
by Meghan Alaska Katherine February 03, 2008
 
6.
"Buy-one-match-one"

In reference to purchasing a single bowl of herb from another party member with the implications of consuming it, and another bowl of equal proportions via the seller after completion of the sale.
Eh bro wanna BOMO?
by Bentvisi0n April 20, 2011
 
7.
sexy girls in general, especially black and spanish
(root: boricua & morena)
Yo mami you a bomo.

All these bomo's in da club tonight
by Penny_Loafa April 30, 2011