ONANISM
masturbation, onanism
(noun) manual stimulation of the genital organs (of yourself or another) for sexual pleasure
Source: WordNet® 3.1
Etymology
Noun
onanism (usually uncountable, plural onanisms)
Masturbation.
Ejaculating outside the vagina during intercourse; (the performing of) coitus interruptus.
Synonyms
• See also masturbation
Anagrams
• Manions, Minoans, amnions, mansion
Source: Wiktionary
O"nan*ism, n. Etym: [Onan (Gen. xxxviii. 9): cf. F. onanisme.]
Definition: Self-pollution; masturbation.
Source: Webster’s Unabridged Dictionary 1913 Edition