'Outmog' is recent gym and 'looksmaxxing' subculture slang meaning to physically dominate or surpass someone in appearance — to 'outshine' them so completely that they feel diminished by your presence. Coined in incel-adjacent online communities, it carries a competitive and often toxic edge: it frames every social interaction as a status contest about looks. If your teen uses it, especially while talking about working out or appearance, it is worth a calm conversation about where the language is coming from, since these subcultures push unhealthy body and self-worth ideas. Not a harmless gym term.