Simple past tense and past participle of rubbish.(verb)
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Use "rubbished" in a sentence
"NAFTA: He never 'rubbished' it, as you so callously put it."
"Next day, Blue Bear and Green Bear were very angry - and stood on the great steps of the glass palace and 'rubbished' the Yellow Bears unmercifully."
"Peter taught us all a valuable lesson last month about being careful about what is written on the weblog when he 'rubbished' Ming Cambell and found himself all over the UK news."