Male masturbation

Masturbation is a form of autoeroticism in which a person sexually stimulates their own genitals for sexual arousal or other sexual pleasure, usually to the point of orgasm. Stimulation may involve the use of hands, everyday objects, sex toys, or more rarely, the mouth (autofellatio and autocunnilingus). Masturbation may also be performed with a sex partner, either masturbating together or watching the other partner masturbate, known as "mutual masturbation".

use of fingers to sexually stimulate

thumb|Artistic depiction of a man performing autofellatio

slang for masturbation of a male group in a circle; figuratively, slang for an excessively self-congratulatory group

2006 single by Pink

male group masturbation in which the participants stand around a biscuit ejaculating onto it; the last person to do so must eat the biscuit

anti-masturbatory device

North American pagan group

sexual dysfunction caused by aggressive masturbation

for artificial insemination, or medical study (usually in fertility clinics)