Hrash: Vi. To Move Wildly Or Violently, Without Accomplishing Anything Useful.

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:thrash: vi. To move wildly or violently, without accomplishing
anything useful. Paging or swapping systems that are overloaded
waste most of their time moving data into and out of core (rather
than performing useful computation) and are therefore said to
thrash. Someone who keeps changing his mind (esp. about what to
work on next) is said to be thrashing. A person frantically trying
to execute too many tasks at once (and not spending enough time on
any single task) may also be described as thrashing. Compare
{multitask}.
-- The AI Hackers Dictionary

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