automagically
automagically: /aw-toh-maj'i-klee/ adv. Automatically, but in a
way that, for some reason (typically because it is too complicated,
or too ugly, or perhaps even too trivial), the speaker doesn't feel
like explaining to you. See magic. "The C-INTERCAL compiler
generates C, then automagically invokes `cc(1)' to produce an
executable."
This term is quite old, going back at least to the mid-70s in
jargon and probably much earlier. The word `automagic' occurred in
advertising (for a shirt-ironing gadget) as far back as the late
1940s.