petty cash

名词 petty cash:

1. a small fund of cash that a firm keeps for the payment of incidental expenses

1. I'd be careful about putting him in charge of the petty cash; he's got sticky fingers.
   让他保管零用现金，我得小心，他有小偷小摸的习惯。
2. She had been pilfering from the petty cash for months.
   她多月来一直从零用现金中偷钱。