fill one's pants

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fill one's pants (third-person singular simple present fills one's pants, present participle filling one's pants, simple past and past participle filled one's pants)

1. (slang, euphemistic) To defecate, urinate, or ejaculate in one's pants, especially as a result of fear or amazement.
   • 2010, Robert Richardson, Java Bond, →ISBN, page 34:

     When these two rookies eventually came under fire he wondered which one would fill his pants first.

   • 2011, Penelope Leach, Your Growing Child, →ISBN, page 650:

     Instead of filling his pants occasionally, such a child will soil them, just a little bit, almost constantly.

   • 2013, Bob Samedi, Tinnitus, →ISBN, page 44:

     For the second time since a toddler, Theodore again came close to filling his pants.

• See Thesaurus:soil oneself