foul (v.) Copy link Outline 1. turpo, 12. expr. by circuml., immundum facere, reddere (v. FOUL). • foul (v.): 1. turpo, 1: Enn. in Cic. Tusc. 1, 35, 85: Lucr.: v. to befoul. 2. expr. by circuml., immundum facere, reddere (v. foul).