Port-o-john
Full definition of port-o-john
Noun
port-o-john
(plural port-o-johns)- a portable toilet
- She tried not to notice the garage attendants observing her when she parked to use the phone booth, furtive as a woman slipping into a port-o-john under the scrutiny of male witnesses. - "Middle Age : A Romance" (2001) by Joyce Carol Oates (Fourth Estate, paperback edition, 208)