[
] 乱丢废
者, 破坏清洁者

litterbug
[ noun ]
a person who litters public places with refuse
<noun.person> 
litterbug \lit"ter*bug`\ (l[i^]t"t[~e]r*b[u^]g), n.
a person who litters public places with refuse.
Syn: litterer, litter lout.
[WordNet 1.5]