When a woman has stretched her vagina to a point, using either hand or objects that she can fit her hand and wrist and a portion of her forearm inside.
Screech had a huge Wizard's Sleeve after 4 years of daily homosexual rapes at Bayside High school at the hands of A.D. Slater, Zack Morris, and Mr. Belding!
a wizard's sleeve first involves anal fisting. once the arm is in, preferably elbow deep, grip whatever part of the intestines is at hand and yank the arm out firmly. with any luck the colon should follow giving the fister a wizard's sleeve.