soil diaper

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

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