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Similar to a party foul, the only exception being that it occurs in a school cafeteria rather than at a party. Following lunchtime blunders like spillage, spitting out of food amidst a fit of laughter, slipping on a stray banana peel, or cutting an elder in line, pals and passersby who witness said mess-up shout "lunch foul," drawing attention to the guilty party and burdening him/her with peer-induced humiliation. For added effect, start a slow clap whilst tablemates point at the wrongdoer. Guaranteed to cause an uproar, but beware: food fight may ensue.
Today Jamie made a funny and Julia laughed until chocolate milk came out of her about a lunch foul!
by Dalevue September 30, 2009
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