To get fucked over, overworked, be made to do bullshit jobs, to be unnecessarily miserable. Also used as "the cock", or to be "cocked".
"Holy shit, I have to work on the weekend again, but the boss's buddy dosen't? This is cock!"
"Fucking dammit, we just got cocked with a double shift!"
"For fuck sake, we have to stay at work for another 3 hours? Why do we keep getting the cock?"