Yow! /yow/ interj.
[from "Zippy the Pinhead" comix] A favored hacker expression
of humorous surprise or emphasis. "Yow! Check out what happens
when you twiddle the foo option on this display hack!" Compare
gurfle.
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yoyo mode n.
The state in which the system is said to be when it rapidly
alternates several times between being up and being down.
Interestingly (and perhaps not by coincidence), many hardware
vendors give out free yoyos at Usenix exhibits.
Sun Microsystems gave out logoized yoyos at SIGPLAN '88.
Tourists staying at one of Atlanta's most respectable hotels were
subsequently treated to the sight of 200 of the country's top
computer scientists testing yo-yo algorithms in the lobby.
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Yu-Shiang Whole Fish /yoo-shyang hohl fish/ n. obs.
The character gamma (extended SAIL ASCII 0001001), which with
a loop in its tail looks like a little fish swimming down the
page. The term is actually the name of a Chinese dish in which a
fish is cooked whole (not parsed) and
covered with Yu-Shiang (or Yu-Hsiang) sauce. Usage: primarily by
people on the MIT LISP Machine, which could display this
character on the screen. Tends to elicit incredulity from people
who hear about it second-hand.