Roman 30 Share definition Flag Slang for porn or a porno, cause in Roman Numerals, 30 is said as XXX which usually refers to porn. I'd love to make a Roman 30 with you!Let's watch some Roman 30 together! Roman 30 by golfcartgangster June 23, 2019 0 0 Get merch Get the Roman 30 mug. Buy Now — $32.95 See more merch