What does “딱 걸렸어” mean in Korean?

In Korean, 딱 (ttak) is a tiny sound-symbolic adverb meaning “exactly, right on, with a snap.” Pair it with 걸리다 (to get caught or hooked) and you get 딱 걸리다 — “busted,” caught red-handed at the precise wrong moment. The 딱 isn’t decoration; it’s the click of a trap closing. 걸렸어 alone sounds flat, but 딱 걸렸어 lands like a gotcha.

딱 is Korean’s Swiss-army adverb of precision: 딱 맞다 (fits perfectly), 딱 좋다 (just right), 딱 하나 (exactly one) — always the idea of landing on a point with zero wiggle room. That’s why it sharpens 걸리다, a verb that on its own sprawls across “to hang,” “to get stuck,” and “to be caught.” 딱 pins it to the guilty split-second. It’s native-Korean and casual — you’ll hear a triumphant 딱 걸렸어! the instant someone’s exposed in a lie or a prank, exactly as it plays here when the hidden neck band gets yanked off on camera.