(chiefly Brit.)(of a person) dress in an untidy or casual manner
(主英)穿著邋遢（隨意）
at weekends he would slop about in his oldest clothes.
周末時他總是隨意地穿些舊衣服。
(especially in prison) empty the contents of a chamber pot
（尤指獄中）倒便桶
[as noun slopping out]the indignity of slopping out.
倒便桶這種恥辱活。