Often used to shorten: Are you bad?
This is often used as a taunt that goes well with the term: Umad? Wich means: Are you mad?
Often used in online gaming when one of your teammates makes a mistake and then taunting them with the umad and ubad combination
Enemy dies.

Killer: Umad coz ubad?

Noobpwner99: Omg u fcnkn fgt im no bad u nobb!

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Teammate dies.

Troll: Wow ubad bro

dragonslayr33: OMG U STFU NOOOB IM NOT BADDD.

Troll: So umad coz ubad?

dragonslayr33 has disconnected.
by Relen May 12, 2011
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The definition of ubad bro comes from the online gaming world of having either a bad teammate or enemy and then calling them your bro afterwards. It has become really popular since ubad and bro are both often used when talking online trash.
Person A: WTF! you stole my kill! $@#* KSer!

Person B: lolol ubad bro! Not my fault you couldn't kill em first!
by Weba February 20, 2012
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