To take a poop. The act of pooping. To deficate, preferably in a toilet or what some call a comode. Often times, this has a much larger connotation implying that the poop was not small or easily done, but rather large and perhaps difficult to procure, sometimes even painful.
Often times shortened to 'Kick a D' or 'Deuce.' Also see drop a deuce.
That mexican food tore me up last night. I woke up and had to kick a donkey!