To take a dump in a pillow case or similar sack-like bag and then beat your partner with it. Commonly practiced by but not strictly limited to members of the homosexual community.
After a tiresome day at work Tarquin decided to go home, kick off his shoes and partake in a good poo sacking.
n. A screenshot fabricated by a company to misrepresent the graphics of a game; a combination of the wordsbullshit and screenshot.
Originated from Penny Arcade, a popular gaming webcomic.
-Have you seen Madden 2006 for the Xbox 360? The graphics are gonna be awesome!
-Dude, the Madden 2006 images they showed at E3 were bullshots. It doesn't look nearly as good as they said.