To keep sexual intercourse to its most basic terms the peniser is the "enterer" in the coital relationship. Can be used to describe a man in heterosexual sex, "the man" in homosexual buggery and the dildo weilding lesbian. All are covered by this term. The receptical of the peniser is is it's antonym the penisee.
by Jack Diddly Squat May 21, 2006