Sorry, I used 'shitting on' figuratively to mean 'disrespecting' and 'denigrating'.

In the linked bodycam video, the MPD officers involved banter about 'needing to spit' when the community engagement officer goes by, and also appear to be partaking in a game where anyone who actually says the officer's name (Dubuc) is subject to mock punishment.

Honestly it's pretty juvenile. It's possible that this is part of a healthy culture somehow (like, I can jump through enough mental hoops to make that happen), but it's almost certainly not part of healthy culture.