Batcaver seems to be an old localized term for goth. It was used in the Pacific Northwest in the 80s but on the East coast, few people have heard the term. The singular batcave was also used.
I went to a Bauhaus concert last week and it was full of batcavers.
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.