ghoul drool
the wet but yet uncolored residue coating and clinging to the anus after a fart. (n.b. ghoul drool, by definition, does not stain the underpants, but it typically foreruns the urgent need to defecate (read: diarrhea)
I was cooking meatloaf the other day when I farted. I was scared I had sh*t myself, but upon checking, though my finger was wet, it was of no different color. I was thankful only a bit of ghoul drool spilled, although I no less quickly attended to my life-stopping need to find the toilet.