Take the 2-minute tour ×  How did the expression shit one's
pants appear? Why is the word in left out before one's pants?
share|improve this question shit, vt, vulgar : to defecate in – 
MετάEd Jan 25 '12 at 17:00 add comment  closed as general
reference by FumbleFingers, Hugo, Mahnax, MετάEd, Mitch Jan 26
'12 at 14:33   1 Answer  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.
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