oil up verb2 •To lubricate with oil; to cover or smear with oil.They really oiled up that bike chain, didn't they?They oiled it up with about five times more oil than was necessary. •To get (someone) drunk.They really oiled him up last night, planning to get him to talk, but he'd been well warned about industrial espionage, and he kept his cool. formsoiled up · oiling up · oils up