Definition of creampie:
(n) :
(slang) The ejaculation of semen into the vagina or anus.
(n) :
(pornography, slang) Semen visibly displayed after ejaculation in the vagina or anus.
(v) :
(originally pornography) To visibly ejaculate in the vagina or anus.
(n) :
Alternative spelling of cream pie. [(originally Canada, US) A pie, usually filled with fruit, topped with whipped cream.]