the.com/rubbish

means Worthless waste or material to be discarded — and by extension, talk or ideas dismissed as equally worthless.

from Rubbish comes from Middle English 'robous' or 'rubbous,' meaning waste or debris, likely related to 'rubble' — both probably tracing back to Old French roots tied to broken stone and rough fragments. The exact deeper origin before that is murky, but the sense has stayed remarkably stable for centuries: it meant literal rubble and refuse long before it stretched, sometime later, to cover nonsense talked as freely as rubble gets dumped.