push shit uphill
To persist at a task that one is clearly not capable of.
I let this stupid n00b think he could hack me even though I'm behind a PIX, just because I wanted to watch him push shit uphill.
pushing shit uphill
In Australian idiom, engaged in a hopeless task.
A: D'you reckon Davo's gonna crack it with that chick?
B: Nah mate. He's pushing shit uphill.
B: Nah mate. He's pushing shit uphill.
Push shit uphill
Taking another man up the back passage.
Derek likes pushing shit uphill