Masturbation is the technical term for the autosexual manual stimulation of the own sexual organs ending with an orgasm. The origin of this term is not completely clear but it is assumed that it is a combination of the Latin mas for male and turbare for to move, while it could also be a combination of the Latin manus for hand and stuprum for fornication. Other terms for this autosexual practice are ipsation or onanism, or more colloquially jerking off or wanking if performed by men.
Masturbation can also be performed as a sexual practice during sexual intercourse with the sexual partner performing the masturbation, which is no longer masturbation, though.
Statistically everyone satisfies themselves in irregular intervals. 90 percent of them are men and two thirds of the women masturbate irregularly. The age at which masturbation is discovered can vary, ranging from a very young age to late adolescence.