He's 'filthy rich'. [=he's extremely rich; he has so much money that his wealth is disgusting or offensive]
He has a 'filthy' mouth. [=he uses language that is very offensive]
He has a 'filthy' temper. [=he gets angry very easily]
(..) Biff. - Don't kid around. Come on. - Come on. Leave. BIFF: You know you want it. You know you want me to give it to you. Shut your filthy mouth. I'm not that kind of girl. Maybe you are and you just don't know it yet. Get your meat hooks off of me. MARTY: You heard her. (..)1985 Back to the Future