Home › Words › O › onanistonanistonanist · noun — A person, especially a man, who masturbates.Definition from Wiktionary (CC BY-SA 3.0).EtymologyFrom onan(ism) + -ist, from Onan, a biblical character known for spilling his seed (semen) on the ground.nounA person, especially a man, who masturbates.A man who uses coitus interruptus as a means of birth control.Definitions & examples from Wiktionary (CC BY-SA 3.0).Words closest in meaningBy meaning, not spelling — each word's AI semantic fingerprint, nearest first.masturbationist 72% match — One who masturbates. vs onanist →autoeroticist 66% match — One who stimulates oneself sexually; a masturbator. vs onanist →onanistically 66% match — In an onanistic manner. vs onanist →masturbator 65% match — Someone who masturbates. vs onanist →onanism 65% match — Masturbation. vs onanist →masturbationism 60% match — Conduct and customs associated with masturbators and masturbation. vs onanist →uranist 59% match — A homosexual. vs onanist →annotationist 59% match — An annotator. vs onanist →