onan·ism /ˈonəˌnɪzəm/
交媾中斷
onan·ism /ˈonəˌnɪzəm/ 名詞
交媾中斷
O·nan·ism n. Self-pollution; masturbation.
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onanism
n 1: manual stimulation of the genital organs (of yourself or
another) for sexual pleasure [syn: masturbation, self-abuse]
2: a method of birth control in which coitus is initiated but
the penis is deliberately withdrawn before ejaculation
[syn: coitus interruptus, withdrawal method, pulling
out]