Top Definition
The sworn enemy of the roflcopter. They don't get along. Most prefer the roflcopter, because he goes soi soi soi.
Master Chief: mai roflcopter gose soi soi soi soi

Arbiter: Doesn't anyone care about the lolplane

Master Chief: rofl n00b u r teh haxxorz
by CommonSenseIsn'tSoCommon June 10, 2009
The lesser used version {Ie. By like 3 people} of ROFLCOPTER. Laughing Out Loud Plane.
Dude: Check out this definition for "SOI". My ROFLCOPTER goes SOI SOI.
by Cillian S November 01, 2007
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