cash on the line noun2 •Cash that is on hand for any expenses.We'll need some decent equipment and plenty of cash on the line—if only for drugs and a super-sensitive tape recorder, for the sake of a permanent record. — 1971 •Synonym of cash on the barrelhead.Everything here is cash on the line. You can pay in advance for your room if you like, or you can pay every morning to keep the room that night. — 2004
