食い潰す

くいつぶす
to run through one's fortune in idleness

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くいつぶす【食い潰す】

eat up all one owns; eat 《oneself》 out of house and home.

●財産を食いつぶす waste [fritter] away a fortune

・元手を食いつぶす live on [eat up] one's capital

・この分では彼はすぐに家も土地も食いつぶすだろう. At this rate he will soon eat himself out of his house and land.