english
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Phrase(s): What’s coming off? [and] What’s going down? Sl. What is happening here?; What is going to happen? (Also a greeting inquiry.) • Bill: Hey, man! What’s coming off ? Tom: Oh, nothing, just takin’ it easy. • Bob: Hey, we just got here! What’s going down? Bill: What does it look like? This is a party, dude!
McGrawhill's American Idioms And Phrasal Verbs