To defecate . To relieve one'
s self by fecal expulsion from one's
anus.
Origin: the frase could have been allocated to this meaning due to the assertion that the dump would be or feel like it was a
two pounder. Hence the word 'deuce'. Or, the more commonly accepted origin of this frase is a response to a euphemism for taking a crap: 'going #
2'.