Dictionary / Vocabulary / 財産を食いつぶす
ざいさんをくいつぶす
to run through one's fortune (in idleness)
Also written 財産を食い潰す
あの子ったら、ほんとによく食べるわね。財産を食い潰す気かしら！
That boy of mine! He'll eat me out of house and home!