go bananas

idiomatic informal

(idiomatic, informal) To get angry; to go mad. / (idiomatic, informal) To become silly or excited; to go crazy.

Japanese Meaning

（口語）激怒する、我に返らなくなる / （口語）おかしくなる、狂ってしまう、非常に興奮する

When he realized someone had scratched his car, he started to go bananas and shouted at the neighbor.

車に誰かが傷をつけたと分かったとき、彼はかっとなって隣人に向かって怒鳴った。

Sense（1）

(idiomatic, informal) To get angry; to go mad.

I just told her she couldn’t have any pudding until after dinner, and she went bananas!

Sense（2）

(idiomatic, informal) To become silly or excited; to go crazy.

The music was going bananas with immensity at this point.

goes bananas

（ present singular third-person ）

going bananas

（ participle present ）

went bananas

（ past ）

gone bananas

（ participle past ）