Self fisting refers to sexual stimulation, especially of one's own genitals (self masturbation), often to the point of orgasm by the use of his/her own hand/s or fist/s. The stimulation can be performed manually, by other types of bodily contact (short of sexual intercourse), by use of objects or tools, or by some combination of these methods. Masturbation is a common form of autoeroticism, and the two words are often used as synonyms, although masturbation with a partner (mutual masturbation) is also common. Related Episodes & Trailers: