Git is the version control system created for the development of the Linux kernel in 2005. When asked about the origin of its name, Linus Torvalds joked: “I'm an egotistical bastard, and I name all my projects after myself. First 'Linux', now 'Git'".
The initial Git README offers the several altenatives stating "git can mean anything, depending on your mood" including:
- a random three-letter combination that is pronounceable, and not
actually used by any common UNIX command. The fact that it is a
mispronounciation of "get" may or may not be relevant.
- stupid. contemptible and despicable. simple. Take your pick from the
dictionary of slang.
- "global information tracker": you're in a good mood, and it actually
works for you. Angels sing, and a light suddenly fills the room.
- "goddamn idiotic truckload of sh*t": when it breaks.
Sources: Git FAQ | Git README | Oxford English Dictionary