'Gymcel' is a portmanteau of 'gym' and 'incel' — a young man who spends excessive time at the gym in the belief that bulking up will solve his loneliness or perceived attractiveness problems. Coined in incel-adjacent online communities. The term is critical, framing extreme gym focus as a substitute for addressing emotional issues. If your teen uses it, calm conversation about the broader online culture it comes from, and about healthy reasons to exercise, is worthwhile.