People have used KO in competitive fighting for over a century, and it is widely recognized in both professional and amateur sports. Beyond combat sports, you may see "KO" in video games, especially in fighting games likeStreet FighterandMortal Kombat, where knocking out an opponent is often the objective.

📱 Gen-Z / Internet Slang

Beginner

ROTFLH

When something is so funny that you feel like you could roll around the floor and laugh hysterically, send "ROTFLH." For example, if you watch a hilarious video that deserves more than ahahaorLOL, send ROTFLH.

📱 Gen-Z / Internet Slang

Intermediate

Nerd Bomb

When someone drops an unsolicited pedantic fact mid-conversation that completely derails the vibe—delivered with the smug confidence of someone who just won an argument they invented.

📱 Gen-Z / Internet Slang

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