A gathering or party where attendance is mostly, if not all, dudes.
we can either go to Ted's helmet party or go out and troll for chicks.
by kejo66 September 19, 2007

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Top Definition
Term used to describe fan-fabricated homosexual relations between the soldier and the engineer characters from a game called Team Fortress 2.
That soldier may be an annoying, anal attaboy, but he throws a fiiine helmet party.
by KGBigelow May 24, 2011

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A party where there are only guys in attendance
Where are all the chicks? This is a total helmet party.
by Tubby John June 21, 2006

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Smooth, soft, slim fit American Apparel shirt. Custom printed. 100% fine jersey cotton, except for heather grey (90% cotton).

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