This is the 3554th most frequent Korean word.
미쳤다
"미쳤다" means "crazy" or "insane."
In this context, '미쳤다' is used colloquially to describe someone acting in a fun or amusingly absurd way.
내 친구가 정말 미쳤다!
My friend is really crazy!
Here, '미쳤다' is used as an exclamation to express disbelief or astonishment at an excessive condition, like high cost.
그 택시비는 완전히 미쳤다.
That taxi fare is completely outrageous.
In this context, '미쳤다' represents being overwhelmed or consumed by a strong emotion, such as love.