Wiktionary
shit all
n. (context UK slang vulgar English) nothing or very little.
Usage examples of "shit all".
This was how modern tree-hugging must be: out shoveling shit all day, then back to the PC to work out leaf tonnages or whatever.
I've felt like shit all day, but whatever was in my system passed.
I was standing right there, my shit all ripped up, dirty, bruised, looking crazy—.
He just went down like a log and laid there while I poured shit all over him.
Where she be, the shelter I'm saying, there shit all over the place if you got the green.