Disorderly or messy; a ruined or chaotic state.
子供たちが遊んだ後で部屋がめちゃめちゃになった。
After the children played, the room was a complete mess.
試験勉強をしていなくて、答案はめちゃめちゃだった。
I hadn't studied for the exam and my answers were a mess.
台風の後で街がめちゃめちゃになった。
The town was ruined after the typhoon.
Absurd or unreasonable; excessive or rash.
彼の要求はめちゃめちゃで受け入れられない。
His demands are absurd and cannot be accepted.
あのルールはめちゃめちゃだ — 見直すべきだ。
That rule is unreasonable — it should be reviewed.
Very; extremely (used as an adverb to intensify).
今日はめちゃめちゃ寒いから、厚着して出かけて。
It's extremely cold today, so dress warmly before going out.
そのライブはめちゃめちゃ盛り上がった。
That concert was extremely exciting.
彼女の日本語はめちゃめちゃ上手だ。
Her Japanese is really good.