from
Jargon File (4.4.4, 14 Aug 2003)
Hacking X for Y
n.
[ITS] Ritual phrasing of part of the information which ITS made
publicly available about each user. This information (the INQUIR
record) was a sort of form in which the user could fill out various
fields. On display, two of these fields were always combined into a
project description of the form "Hacking X for Y" (e.g., "Hacking
perceptrons for Minsky"). This form of description became traditional
and has since been carried over to other systems with more general
facilities for self-advertisement (such as Unix {plan file}s).