A word accidentally used when a gymnast is trying to talk about what they do, but can't stop thinking about your monster cock and/or bukakke.
Person 1: So at my gym yesterday, I did a triple back-hand spring for the first time.
Person 2: That's just lovely (Pretending to give a fuck)
Person 1: Yes, being a jizznast is amazing! Oops, sorry, I meant gymnast.
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.