A word meaning attempting to Drive by someone. Deo comes from Gerry Deocampo, a deranged, insane and crazy teacher who was drove crazy by his Computer Web Desing period 5 class. He then forced his tennis students to meet at his house for "meetings."
Eventually he left and now he tries to kill Divine/HoLmEs by Drive Bys.
Oh man, I almost went Deo Style on that punk!