飲んじゃった

drank

→ 飲む

飲ん drink + じゃっ Past completive (しまう) + た Past tense

verb · informal, past tense Rare #43,431

drank Colloquial contraction of 飲んでしまった; often suggests the action was completed, sometimes with regret or by accident.

JA: 水を飲んじゃった。

EN: I drank the water.

Conjugation of 飲む

Indicative past

I drank all the milk.

I’m full of sleeping pills too—I drank the whole bottle.

— ファイト・クラブ (1999)

Mom, I swallowed my gum!