The phrase "gettin(g)' your shit pushed in" has a dual meaning. The first (and more popularised use) has already been addressed in the other entries.
The other less well known use means to be shot.
Below, Moreno is asking Jake if he has ever been shot.
Extract from the hit film "Training Day"
Getting your shit pushed in ...
Moreno to Jake : "Hey pig, you ever had your shit pushed in? Your shit pushed in. Simple question."
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She likes regular sex but loves pushing shitanal sex
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the act of doing so many push up that you in fact defecate yourself
i got to 49 push ups then did one push shit
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To have someone stick their fingers in-through-the-out-hole in order to give one sexual pleasure.
holy shiiiiiiiiiiiiiiiiiiiiiiiiiit!
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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.
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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.
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Taking another man up the back passage.
Derek likes pushing shit uphill
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