A cartwheel, in the midst of which a shit is accidentally taken.
"Trying to make a list using bullets and numbering in Microsoft Word is like doing a shartwheel."
by Buster T. Foodcube January 27, 2007
The act of sharting while performing a cartwheel.
James shartwheeled down the hall. Goodness gracious what a mess.
by Kabus December 02, 2004