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1.
a shit in a toilet bowl that wraps around the perimeter of the toilet, yet still leaving a gaping hole in the middle
after eating all that meatloaf i produced a crucial bowl winder
by bwhaha July 25, 2003
 
2.
A bowlwinder is a mega-turd so great in length, that it actually winds around the toilet bowl like a soft serve cone at the Dairy Queen.
Dude, I think I'm going to be sick. I just went to take a leak in the gas station bathroom and somebody left a bowlwinder in there! I think it was staring at me.
by JayDub October 01, 2004