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1.
When a person in a group of friends starts to like someone, many other people in that group also begin to like that person.
I liked Haley first and then all you guys started liking her. You all just have Spontaneous Group Infatuation Syndrome. You dumb pricks.
by Sleet October 05, 2009
4 1

Words related to Spontaneous Group Infatuation Syndrome:

group infatuation jelousy like love people sgis spontaneous syndrome