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When a student has charcoal on their face from cultural aesthetics class (art). This is because all IB students at Berkeley High School have to take this class which often involves the use of charcoal
Dude #1: "Yo did you try to holler at Julia afterschool"
Dude #2: "Naw man I had a bad case of IB face, I looked like a homeless man"
by Thizz212 October 24, 2007