1 definition by MafiaDoll
A slut in training. Formed from the first two letters of SLut, the first letter of In and the first letter of Training. Usually a younger kid who hangs around sluts or hits on guys when in 2nd or 3rd grade.
Joanne is such a slit following her slutty big sister Margaret around. She's sure to be upgraded to slut once she turns 9.
by MafiaDoll December 30, 2008