过去式::bummed
过去分词::bummed
现在分词::bumming
第三人称单数::bums
"only a rotter would do that"
"kill the rat"
"throw the bum out"
"you cowardly little pukes!"
"the British call a contemptible person a `git'"
"a homeless tramp"
"he tried to help the really down-and-out bums"
"a lazy bum"
"he deserves a good kick in the butt"
"are you going to sit on your fanny and do nothing?"
"Her son is just bumming around all day"