Detailed Translations for culo from Spanish to English. culo: culo [la ~] noun. la culo (nalgas) the buttocks – the fleshy part of the human body that you sit on 1. buttocks [the ~] noun. the ass; the bottom; the bum; the behind; the backside; the rump; the rear; the fanny ass [the ~] noun. bottom [the ~] noun. bum [the ~] noun, British.