colloquial. to do (also †be at) one's business: to defecate or (occasionally) to urinate.

transitive. slang. to pluck a rose: (of a woman) to urinate or defecate. Now archaic and historical.

To make a brief visit. Frequently with on, at, or indirect object, specifying the person or place visited.

to go backward: to retire for a necessary purpose (hence said of the action). Obsolete.

In various idiomatic expressions and phrases in which some action other than movement towards the… intransitive. colloquial. Without complement. To…

to do (one's) duty: euphemism for ‘to defecate, urinate’.

to wash one's hands: euphemistic expression for ‘to go to the lavatory’.

to spend a penny: to go to the toilet; to urinate.

intransitive. euphemistic. Esp. of a child or a pet: to urinate or defecate. Now frequently with admixture of sense 4d.