hack = H = hack mode

hack attack n.

[poss. by analogy with `Big Mac Attack' from ads for the McDonald's fast-food chain; the variant `big hack attack' is reported] Nearly synonymous with hacking run, though the latter more strongly implies an all-nighter.

--The Jargon File version 4.3.1, ed. ESR, autonoded by rescdsk.

Log in or registerto write something here or to contact authors.