[mass noun] stony waste matter separated from metals during the smelting or refining of ore
矿渣,炉渣,熔渣。
similar material produced by a volcano; scoria
火山渣。
〈英, 非正式,贬〉 妓女,荡妇(性乱交的女子)。
a contemptible or insignificant person
卑鄙小人;无足轻重的人。
[no obj.] [usu. as noun
成渣。
[with obj.]
〈英, 非正式〉 辱骂;侮辱(某人)
-
we used to hate each other and slag each other off .我们过去相互憎恨,经常相互辱骂。
"mid 16th cent.: from Middle Low German