autosodomy means anal masturbation performed by inserting one's own penis into one's own anus. Lexicurio rates it Sui generis — a strength score of 85 out of 100.
Etymology
From auto- + sodomy.
noun
- Anal masturbation performed by inserting one's own penis into one's own anus.“This self-destructive act of autosodomy is the most powerful symbol in the novel for what is the essence of Cela's judgement on the Civil War: the sterile orgasm of a perverted national psyche.”