relieve oneself

Verb

relieve oneself (third-person singular simple present relieves oneself, present participle relieving oneself, simple past and past participle relieved oneself)

1. (euphemistic) To urinate or defecate.
   • 1989, Snyder v. Harmon, 562 A.2d 307 (Pa. 1989) (Zappala, J., writing for the majority), Pennsylvania Supreme Court

     As they traveled along L.R. 33060, one of the passengers mentioned he had to relieve himself, so Barrett stopped the car along the berm of the road, which, unbeknown to the travelers, was directly adjacent to a strip mine.

2. (euphemistic, sexuality) To masturbate to orgasm.
   • 2014, Abbie Smith, Celibate Sex: Musings on Being Loved, Single, Twisted, and Holy

     Nevertheless, to relieve oneself takes the edge off the desire and doesn't take advantage of others.