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1.
1 - When a club or group is created with no intentions or few members.
2 - When a club creator has high hopes for a club, which none of the members care for.
Named after the anime, "The Melancholy of Haruhi Suzumiya".
1: "It seems no one is joining that new science club. I don't even know what they do!"

2: Person A - "The club leader wants us to meet everyday after school!"
Person B - "I don't even care about this club! Talk about an SOS Brigade effect!"
by randoman412 February 01, 2009

Words related to SOS Brigade effect

anime brigade brigaide club effect group sos s.o.s.