:happily: adv. Of software, used to emphasize that a program is
unaware of some important fact about its environment, either
because it has been fooled into believing a lie, or because it
doesn't care. The sense of `happy' here is not that of elation,
but rather that of blissful ignorance. "The program continues to
run, happily unaware that its output is going to /dev/null."
-- The AI Hackers Dictionary
wrap around: vi. (also n. `wraparound' and v. shorthand
`wrap') 1. [techspeak] The action of a counter that starts over
at zero or at `minus infinity' (see {infinity}) after its
maximum value has been reached, and continues incrementing, either
because it is programmed to do so or because of an overflow (as
when a car's odometer starts over at 0)....