The phrase "poor bastard" is used to describe someone who is unlucky or in a difficult situation. It's usually used empathetically to express pity or sympathy for the person being referred to. Full definition
I liked Soviet Assault too (especially that poor bastard Capt. Malashenko), but I got the impression there was a whole complete game that ended up getting whittled down to a handful of new missions. (gameological.com)
Something renovated within an inch of its life by some other poor bastard. (housegoeshome.com)
About 10 minutes later the doctor returned, sat on the edge of my bed and gravely told me how terribly sorry he was... that they'd forgotten to reset the ECG machine after the last poor bastard's dire reading. (housegoeshome.com)