1. The act of taking a shit
2. Realy working the knot muscle sphincter
to force out a bashful turd
3. What you can see your dog's balloon knot doing (especially a short haired one) while he is sniffing around trying to find the right place to dook
1. That bathroom is going to be nasty, George has been in there for an hour working the knot.
2. Man, I had to work the knot so much on that one, I think i ripped my grundle.
3. Your dog is starting to vigorously work his knot, you better let him out before he shits on the coffee table.