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The New Hacker's Dictionary

hidden flag // n.

[scientific computation] An extra option added to a routine without changing the calling sequence. For example, instead of adding an explicit input variable to instruct a routine to give extra diagnostic output, the programmer might just add a test for some otherwise meaningless feature of the existing inputs, such as a negative mass. The use of hidden flags can make a program very hard to debug and understand, but is all too common wherever programs are hacked on in a hurry.

high bit // n.

[from 'high-order bit']

1. The most significant bit in a byte.

2. [common] By extension, the most significant part of something other than a data byte: "Spare me the whole saga, just give me the high bit." See also meta bit, hobbit, dread high-bit disease, and compare the mainstream slang 'bottom line'.

high moby /hi:' mohb'ee/ n.

The high half of a 512K PDP-10's physical address space; the other half was of course the low moby. This usage has been generalized in a way that has outlasted the PDP-10; for example, at the 1990

Washington D.C. Area Science Fiction Conclave (Disclave), when a miscommunication resulted in two separate wakes being held in commemoration of the shutdown of MIT's last ITS machines, the one on the upper floor was dubbed the 'high moby' and the other the 'low moby'. All parties involved grokked this instantly. See moby.

highly // adv.

[scientific computation] The preferred modifier for overstating an understatement. As in: 'highly nonoptimal', the worst possible way to do something; 'highly nontrivial', either impossible or requiring a major research project; 'highly nonlinear', completely erratic and unpredictable; 'highly nontechnical', drivel written for lusers, oversimplified to the point of being misleading or incorrect (compare drool-proof paper). In other computing cultures, postfixing of in the extreme might be preferred.

hing // n.

[IRC] Fortuitous typo for 'hint', now in wide intentional use among players of initgame. Compare newsfroup, filk.


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