ㄩㄢyuānㄉㄚˋㄊㄡˊtóu

  1. 顢頇枉費錢財文明小史·一回》:只消幾個冤大頭彌補過去。」二十年目睹之怪現狀·》:等到無端碰了這麼冤大頭一口便便樂得如此設施。」冤桶

spendthrift and foolish, sb with more money than sense