On V. [NRL, CMU; Prob. Fr. The Movie "Tron"] To Become Inaccessible Except Via Email Or Talk(1), Especially When One Is Normally Available Via Telephone Or In Person.

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tron v.

[NRL, CMU; prob. fr. the movie "Tron"] To
become inaccessible except via email or talk(1), especially
when one is normally available via telephone or in person.
Frequently used in the past tense, as in: "Ran seems to have
tronned on us this week" or "Gee, Ran, glad you were able to
un-tron yourself". One may also speak of `tron mode'; compare
spod.

Note that many dialects of BASIC have a TRON/TROFF
command pair that enables/disables line number tracing; this has
no obvious relationship to the slang usage.

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