1 definition by Karl Denning IIIthousand

Portmonteau of "Bro" and "Obligation". If you are bros with someone, no matter how shitty his band is or how mind-numbing his poetry is, you are obligated to be his number one fan. Or, you know, decide to take some time off from each other while you consider new bros that might be a better match for each of you.
"Dude, you read my book yet?"
"Naw man, haven't had the time."
"You got to make the time dogg. You've got a brobligation to fulfill!"
by Karl Denning IIIthousand April 7, 2009
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