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1.
to expedite desired actions, in order to counteract habitual avoidance behavior. The opposite of procrastination.
If you don't practice anticrastination you will never get anything done.
by Robert Levy December 02, 2007
 
2.
life before Twitter
Until I started tweeting, anticrastination was amongst my few virtues but, alas, no more.
by Linnet Woods December 07, 2008