From Longman Dictionary of Contemporary Englishboom boxˈboom box noun [countable] DHTCB American English informal a ghetto blaster
Examples from the Corpus
boom box• There she was allowed to buy a boom box and sell it back for only $ 10 less.• I did not want to die impaled on a boom box during midair turbulence.• I take a boom box in the loo with me.• As a social service, how about installing our own classical music boom box? 