RTFM
/R-T-F-M/ [UNIX] imp. Acronym for `Read The Fucking
Manual'. 1. Used by gurus to brush off questions they
consider trivial or annoying. Compare Don't do that, then!.
2. Used when reporting a problem to indicate that you aren't just
asking out of randomness. "No, I can't figure out how to
interface UNIX to my toaster, and yes, I have RTFM." Unlike
sense 1, this use is considered polite. See also FM,
RTFAQ, RTFB, RTFS, RTM, all of which mutated
from RTFM, and compare UTSL.