nlnj@*prOn Share definition Flag (ninja pron) a violent form of hentai, found in Japan and loved by the gothic masses I've watched hentai so much, that it doesn't quite do the trick anymore. Now, I use nlnj@*pron to get to the next level! nlnj@*prOn by rampant c March 10, 2004 0 0 Get merch Get the nlnj@*prOn mug. Buy Now — $32.95 See more merch