"zoom bag" means: Military slang for a flight suit — the full-body garment worn by jet pilots, astronauts, and aircrew. The nickname plays on the idea of zoom.... There is a drug-related reference, so this is one worth noticing without overreacting. Many teens encounter such vocabulary through music, film and friends without any direct involvement. A neutral, curious conversation about where they heard the term and what they understand by it is far more useful than a confrontation. Watch for repeated context, not a single word.