meninjacockilitis Share definition Flag An std you get from fucking a ninja in the butt. I met this guy and fucked him SO HARD. It turned out he was a ninja and now I have meninjacockilitis. meninjacockilitis by Gug the butt fuck May 28, 2018 0 0 Get merch Get the meninjacockilitis mug. Buy Now — $32.95 See more merch