How did the expression shit one's pants appear? Why is the word in left out before one's pants?
closed as general reference by FumbleFingers, Hugo, Mahnax, MετάEd, Mitch Jan 26 '12 at 14:33
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Seems that it follows the same pattern as "wet one's pants" or "dirty one's pants" or the like. The first word in both of these is a transitive verb, so the one in your example is evidently being used in the same way.