rehash

verb

1. (transitive)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[.]”

2. (transitive)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.”

   “The general rehashed plans for the war.”

3. (transitive)To analyze a prior contentious or embarrassing event.

   “Let's not rehash what we did last night.”

4. (transitive)To recompute the structure of a hash table, taking into account any newly added items.

noun

1. Something reworked, or made up from old materials.

   “He wrote a bad rehash of an earlier essay.”

2. A recomputation of the structure of a hash table, taking into account any newly added items.