The anus, when it has been properly converted into a sexual zone in the process of feminization of a {slutboy.
The Mistress: Keep dildoing, slutboy, keep working... Soon we will turn this meaningless hole of yours into a fair slit-ass.
by Ysengrim January 2, 2004
Get the slit-assmug. Derogitory term used to describe in horrific detail the portion of genitalia in between the womans nether regions.
by Bindy Sue February 20, 2007
Get the slit assmug.