Top Definition
The ability to detect and track the progress of diarrhea in your body; the warning your body gives you before you muddy your underoos
Danielle sat alone on the park bench, crestfallen. Earlier that day she had failed to check her diarrhadar while standing in line at Hardees Big Boy, and caca'd all down the backside of her favorite kulats.
by Ph.D(iarrhea) April 18, 2013

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