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1.
The opposite of outsource; meaning this is one job you can't find someone else foolish enough to do, or you can't find someone competent enough to do it with the kind of money and credibility you have available so you're just going to have to do it yourself.
Revenues were down, investors were jittery, so the dotcom startup had to insource its janitorial services.

The profligate wife had gained a few pounds and so was compelled to insource her ways and means of satisfaction.
by Slick Willy December 29, 2004