タンス貯ちょ金きん

noun

mattress money; cash kept at home

Refers to money saved privately at home, often in a chest of drawers (タンス), rather than deposited in a bank. The term is a play on タンス預金 (tansu yokin), which has the same meaning.

See also: タンス預金

• 祖そ母ぼは銀ぎん行こうを信しん用ようせず、タンス貯ちょ金きんをしている。

  My grandmother doesn't trust banks and keeps her savings at home.