The substance that drips from the anus after ejaculation during anal intercourse. It is sometimes consumed with a straw.
by One87 May 02, 2003

Hey, this buttmilk that's about to be made into buttcheese from my buttudders is really tasty! Try some!
by Anthony Negrete March 14, 2007

by Thizzizzipz October 18, 2022
