Okay, “trash” can be both a noun and a verb (trashes, trashed, trashing), so why not “rubbish”? Although it did strike me as odd when I read it as a headline in today’s New Indian Express newspaper.
The internets seem to agree rubbish used as a verb is informal or “British slang.”
PS I realise the risk in posting any grammar comments given the typos and errors throughout my own blog. Yes, this is the pot calling the kettle black.