Wait, what?! — the sound of being caught off guard.
A pure reaction with no content: shock, disbelief, mild horror, secondhand embarrassment. One syllable does all of it. Enormously common in texts, comments and captions, and now said out loud too.
Born in early-2000s Korean text chat as a typed gasp, then escaped into speech.
Very casual and reads young. Fine with friends and online, out of place in anything formal or with an elder.
Reading a definition isn't the same as saying it to someone. Lingo Kaiava is a voice tutor set to Korean — it uses 헐 the way locals do, corrects you in the moment, and never "fixes" the way real people actually talk into textbook Korean.
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