τραχὺς ἐντεῦθεν μελάμπυγός τε τοῖς ἐχθροῖς ἅπασιν → he is a tough black-arse towards his enemies, he is a veritable Heracles towards his enemies
belügen, mendacio oder mendaciis fallere. – jmd. derb, tüchtig b., mendaciis onerare alqm.