The spelling for that funny noise you on youtube videos that microsoft sam makes. Also, master chief uses it in an episode of arby n' the chief made by digitalph33r.
Arbiter: What the hell is this on my back? I'm stupid?
Master Chief: Soi soi soi soi soi soi!
by Adam Carrizales June 28, 2008
The sound made by the hilarious roflcopters of WOW
Player:Look! It's a roflcopter!
Roflcopter:(zooming over head) soi soi soi soi soi!
by Piemagnet June 29, 2008

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