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
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