Pig Ol' Benis Share definition Flag Slang term or code word, deriving from Tig Ol' Bitties. Pig Ol' Benis simply means to have a Big Ol Penis!! I had sex with this guy last night and he has a Pig Ol' Benis... hell ya!!!! Pig Ol' Benis by Michael Tiff April 6, 2006 0 0 Get merch Get the Pig Ol' Benis mug. Buy Now — $32.95 See more merch