soil (one's) diaper(s)

soil (one's) diaper(s)

To defecate into the diaper one is wearing. Primarily heard in US, Canada. Uh oh, I think Tommy just soiled his diaper. I'd better go change it. I just hope I don't live so long that I end up in some nursing home soiling my diapers.
See also: soil
Farlex Dictionary of Idioms.

soil one's diaper(s)

[for a baby] to excrete waste into its diaper. The baby soiled his diapers. I detect that someone has soiled his diaper.
See also: diaper, soil
McGraw-Hill Dictionary of American Idioms and Phrasal Verbs.
See also:
  • diaper
  • soil diaper
  • soil (one's) nappy
  • mess
  • carry (someone or something) over to (some place)
  • carry over to
  • use the bathroom
  • poopie
  • poopied