Describing a purchase made in cash and paid in fullimmediately. (NOTE: "barrelhead" is the flat top of abarrel,which is sometimes used as a table.)

　　例句

　　Most vendors in the street market want to be paidcash on the barrelhead, and will not accept checks or credit cards.

　　大多数街头市场的小贩只收现金，不接受支票或信用卡。