Search Result for "heads down":

The Free On-line Dictionary of Computing (19 January 2023):

heads down [Sun] Concentrating, usually so heavily and for so long that everything outside the focus area is missed. See also hack mode and larval stage, although this mode is hardly confined to fledgling hackers. [Jargon File]
The Jargon File (version 4.4.7, 29 Dec 2003):

heads down adj. Concentrating, usually so heavily and for so long that everything outside the focus area is missed. See also hack mode and larval stage, although this mode is hardly confined to fledgling hackers.