vt. 1. To grab, esp. to grab a large document or file for the purpose of using it with or without the author's permission.
See also BLT.
2. [in the UNIX community] To fetch a file or set of files across a network.
See also blast.
This term was mainstream in the late 1960s, meaning 'to eat piggishly'. It may still have this connotation in context. "He's in the snarfing phase of hacking -- FTPing megs of stuff a day."
3. To acquire, with little concern for legal forms or politesse (but not quite by stealing).
"They were giving away samples, so I snarfed a bunch of them."
4. Syn. for slurp.
"This program starts by snarfing the entire database into core, then..."