Top Definition
(Computer Science) An uninterrupted, extended period of solid Java programming, usually covering most of the night.

Strictly, a javathon involves abstaining from food, drink, rest and often human contact.
Bill: Where'll you be later on?
Ben: I haven't started my programming assignment yet and it's due in tomorrow, so it's Javathon time in the lab for me, I'm afraid.
by SwingKing March 31, 2003
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