rehash /ɹiːˈhæʃ/verb 4/ˈɹiːˌhæʃ/ noun 2forms 3 verb4 •To hash (chop food into small pieces) again.I never did care for Sunday joint that was served up cold on Monday, hashed on Tuesday, rissoled on Wednesday, and re-hashed on Thursday[.] — 1942 •To repeat with minor variation.Today's parliamentary session only rehashed last week's arguments.The CEO of the company only rehashed a speech for the news conference. •To analyze a prior contentious or embarrassing event.Let's not rehash what we did last night. •To recompute the structure of a hash table, taking into account any newly added items. rehash /ˈɹiːˌhæʃ/ noun2 •Something reworked, or made up from old materials.He wrote a bad rehash of an earlier essay. •A recomputation of the structure of a hash table, taking into account any newly added items. formsrehashed · rehashing · rehashes