Top definition
1. An act when a person brings a murder weapon to school, talk about killing students or staff, or shoots up the school

2. See Columbine

3. A crime under Zero Tolerance
Danny told another student that he was going to kill the school resource officer be detinating a carbomb in the squad car. Now he is serving 15 year inprisonment
by Super Trouper October 17, 2003
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