sock something away
phrasal verb with sock verb [ T ] uk/sɒk/ us/sɑːk/
US informal
（通过将钱存银行或投资）攒（钱），储蓄
to save money by putting it in a bank or by investing it (= giving it to companies hoping to get more back)
He's socked away hundreds of dollars in a savings account. 他在储蓄账户中存了几百美元。