When wiping your ass, you accidentaly run your thumb through the stool creating a thumbschwab. Only way to be sure if you thumbschwab is to sniff!
I had a thumbschwab today but wasn't sure if it was shit on my thumb or perhaps caramel from desert. After taking a whiff it was shit! A confirmed thumbschwab.
by Stoolius July 20, 2006
Get the thumbschwabmug.