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coined by 1 < a z e of Infantry Online to refer to clueless kiddie n00bs flying their helicopters as they are about to be shot down.

a variation of roflcopter and a literal combination of "harro" (leet chinese man saying hello) and "helicopter" to either mean "harro i am shooting you down helicopter" or "harro i am on a helicopter and you aren't touching me"
Oh, that harrocopter killed me.
So I was flying my harrocopter in circles around four lines of kids.
Lure that kid on his harrocopter here plz. Kthx.
Rorororor, you wish you can touch my harrocopter, son.
by kfcthesecretary January 18, 2011
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