rock bottom noun 2rock-bottom verb 1forms 3 noun2 •The very lowest possible level.Pork belly futures have hit rock bottom. •The lowest possible state in one’s life, whether mentally, socially, or otherwise; often, a period of extreme mental stress, homelessness, or rejection by all friends and family.Some people believe that mental illnesses can't be treated unless the person hits rock bottom first. rock-bottom verb1 •(figurative) To fall to the lowest possible level.By now, you probably think your opinion of Goldman Sachs and its swarm of Wall Street allies has rock-bottomed at raw loathing. — 2010 formsrock-bottomed · rock-bottoming · rock-bottoms