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1.
bco
Elitism, secrecy, and tradition.
Fuck, is bco down again?
by xoxo February 11, 2005
 
2.
BCO
Black Cock Only
"Fuck, that girl is hot"
"Sorry white boy, can't you tell? She's BCO."
by teen23 December 29, 2009
 
3.
a good looking female basketball player with mad hott skillz make all the boys go crazy by bouncing a ball....you must be so hood and white to be B.CO (and jewish)
"Wow Dana Gould you are as almost as good as B.co"

"B.Co wouldve made that shot"

"Dana you cant have him, that's B.Co's fifth boyfriend today"
by Bco March 06, 2006