When I lived in Seattle (4th and Wall, 2004-2006), public defectation was something noted daily on my walk to work.
True, but this isn't winos living on a park bench in Pioneer Square, or a heroin addict looking for his next meal out of an ally dumpster. This is an unlawful assembly of protesters, sanctioned and supported by the Democrats.
It's 'defecation', but your double entendre is really fitting.