Highkey September 14, 2026 by 1 min read Highkey — Obviously, openly — the opposite of lowkey. “I’m highkey obsessed with this show.” Origin: General internet reaction slang, spread mainly through TikTok and X/Twitter comment sections. Reactions & internet culture More Terms You'll LoveBig YikesDeadassCaught in 4KSheeshLurkerThirsty