Food that is awful; junk, trash; anything disgusting, even loathsome (Yiddish כאַזער, from Heb.חזיר  “khazir,” pig). Example – “Ben, before going to sleep, could you please clean up all that chazerai?”  

Hock Literally: Don’t knock a tea kettle. To bother incessantly, to break, or nag from “hokn a chaynik”– “to knock a teakettle.” Hock mir nisht kein tshainik-  האַק מיר נישט קיין טשײַניק Aside from the metaphor...