This is the 14652nd most frequent Korean word.
미치광이야
"미치광이야" means "It's a crazy person" or "They're a lunatic."
The word '미치광이야' refers to a person who behaves irrationally or erratically.
그는 정말 미치광이야.
He is truly a madman.
Here, '미치광이야' is employed metaphorically to describe actions that are unconventional or extreme.
그녀의 행동은 미치광이야.
Her behavior is crazy.
In this case, '미치광이야' is used figuratively to express incredulity or astonishment about an event.