(chiefly Brit.)(of a person) dress in an untidy or casual manner
(主英)穿着邋遢（随意）
at weekends he would slop about in his oldest clothes.
周末时他总是随意地穿些旧衣服。
(especially in prison) empty the contents of a chamber pot
（尤指狱中）倒便桶
[as noun slopping out]the indignity of slopping out.
倒便桶这种耻辱活。