I assume bamf refers to x-men comics where "bamf" was the onomatopoeia for the demonic character Nightcrawler's teleportation.

Offtopic:

(1.) As someone who has only seen the movies, does Azazel (First Class) do "Bamf!" in the comics, too?

(2.) He's Nightcrawler's dad, right? (WP claims so)

According to https://launchpad.net/bamf, it's the BAMF Application Matching Framework

bad-ass motherfker daemon?