Similar to fisting; involves grabbing your sleeve and inserting it fist and all into someone else's rectum. The next step, is to deftly remove your fist, leaving the sleeve in place, thus creating the 'stovepipe' out of the long sleeve.
My mom called in sick to work because her boyfriend gave her the Montana Stovepipe, and now she hasn't shit right for a week.
by GoldB69 October 5, 2007