A common 1337 expression for people playing a gun-related game such as Soldier Front, Call of Duty, etc. Meaning that they killed someone (with headshot or not.)
Player1 shoots Player2 in the head.
Player1: b00m headshot!
Player 2: -.- wtf n00b!
Player1: Too bad nub.
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an explosion of excitement or a taunt boasting- JoeL_b00m
1.Ha ha ha b00m In the face! 2. b00m how do you like them apples!
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p1mp daddy, super l33t, ownz y0ur mom, and y0ur dad, has sk1ll 0ver your siblings, deserves to live, someone with giant penis. someone with absolute sk1ll.
I am b00m
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Some kid with no job that mooches off his parents hard labor so he can sleep until 1:00pm EST play in the hot tub or waste time not looking for a job on irc.
b00m get a fucking job.
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when you just owned someone usually in a game or competition.
yourfriend: how'd you win---
you: b00m
b00m is short for mrb00mbastic, someone who is naisu hooman, loves cat, or any animal basically. hates insect. mediocre jokes. loves to watch house. likes coffee. everyom=ne simps on b00m.