一いっ杯ぱい食くう

expression, godan verb (-u)

be deceived; be taken in; be tricked

Idiomatic expression meaning to be fooled or swindled, often implying a clever trick or scheme. Used in the passive sense even though the verb is active in form.

• 彼かれは詐さ欺ぎ師しに一いっ杯ぱい食くわされた。

  He was taken in by a con artist.

• まんまと一いっ杯ぱい食くったな。

  You've been completely fooled, haven't you?