냐

blunt, very casual question ending

Ends a question in the roughest, most familiar style — used with close friends, toward juniors, or when talking at the screen: 맵냐? 'is it spicy?', 어떻게 사냐? 'how've you been?'. It often carries teasing or challenge rather than plain curiosity, as in 할 말이냐! 'and you're the one to talk!'. The 아냐 that appears in several lines is 아니야 'isn't it' squeezed together, so the question is really 'isn't that...?'. Say this to a stranger or an elder and it lands as rude.

Register: very casual, can sound rough or teasing