ひとのふんどしですもうをとる

人のふんどしで相撲を取る

表記・読み：人の褌で相撲を取る・ひとのふんどしで相撲を取る・ひとのふんどしですもうをとる

1. 1

   to profit at someone else's expense; to rob Peter to pay Paul; to take risks with other people's money

   expressions (phrases, clauses, etc.)五段動詞（る）idiomatic expression