To take a shit or crap.
I deficated on my neighbor's front porch.
od uživatele Fetus Humper 03. Říjen 2005
Yet another mis-spelling of an English word by an under educated public. Of course, the word they're struggling for is 'Defecate'.
I deficate (sic) on your poor use of the language!
od uživatele teaurn 01. Červen 2007