Something, usually a situation, that you can get into that can have very persistent effects much like stepping into "dogshit". Scrapping the soles of your shoes for days trying to get all the nasty, shit-smelling turdbits off your fancy running shoes is not fun.
Joe saw the "dogshit" and got out of that shithole bar before all hell broke loose.
Jim knew that Jill was "dogshit" crazy and might fucking kill him with a butcher knife, so he kept a safe distance away from her vagina area.
An expression; More foul smelling than bullshit, policies and work practices ejected by lower forms of life (fast stream management)
Stoops to lower depths of utter rubbish than bullshit.
My Boss in work asked me how the new way of handling public calls was going. I told him the truth and said it was "Dogshit, sir"