Simple past tense and past participle of rehash.(verb)
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Use "rehashed" in a sentence
"I cant believe this is coming so soon - I hope that doesn't signify it's just another GameCube title rehashed for the Wii."
"In gaming terms the rehashed story isnt a big deal most games these days are barely original."
"If, as Robert and others have argued within our "rehashed" debates, the fount of incompetence and arrogance lies in the policy think tanks upon which the administration relies, how will a constitutional change allowing a vote of no confidence address the tendency of fellow party members to rely upon common sources of policy - and decision-making?"