shit all over (someone or something)

shit all over (someone or something)

vulgar slang To give someone harsh, dismissive, and undeserved criticism. I know you're stressed about the wedding, but can you please stop shitting all over me? I didn't intentionally bring the wrong box of decorations! If she's just going to shit all over my ideas like that, then I don't see any reason to participate any longer.
See also: all, over, shit

shit all over somebody/something

(taboo, slang, especially American English) treat somebody/something very badly: We’re supposed to be helping them and they shit all over us every chance they get.