Splinteranus Share definition Flag A splinteranus is a person who is susceptible to anal rips or Fischers , mostly homosexuals or those who enjoy anal sex . For example Alan won’t be in to work today, he is a splinteranus. Splinteranus by Skunkface February 6, 2021 0 0 Get merch Get the Splinteranus mug. Buy Now — $32.95 See more merch