Either someone who makes you laugh, someone who is the bomb, or if used sarcasicly,a massive tool usually on xbox live.
1. Tim: Did you hear Toms dirty joke?
Pat: Yeah, what a roflbacker.
2. Jim: 15 killstreak!
Hornito: Dude you are a roflbacker.
3. (Jhonny get spawn killed) Wow you would spawn kill me, what a roflbacker
Pat: Yeah, what a roflbacker.
2. Jim: 15 killstreak!
Hornito: Dude you are a roflbacker.
3. (Jhonny get spawn killed) Wow you would spawn kill me, what a roflbacker
by serigka'rfgm]efgdfgafgaersdfas June 3, 2010
Get the Roflbacker mug.The hilarity of the ensuing permastun pwnage upon obtaining two sets of Cranium Bashers on heroes such as Troll Warlord and Mortred in the online game DotA.
by theguvnr March 30, 2009
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Even more awesome than lolsauce, normally combined with lolsauce to indicate unstoppable awesomeness
by The roflcracker February 4, 2009
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