Nice charity outfit you're wearing cheapskate! (mildly offensive)
Other version: can be said of an individual living a cheap life, feeling proud about it by saying they embrace a gypsy lifestyle while actually swimming in their parents money. To be shot on sight.
you: what do you mean?
me: when there arent extra helpings to take home to eat, he stays after his shift is over and cooks his dinner here at work so he doesn't have to use his own electricity
you: doesn't he work more overtime than anyone?
me: yeah, he does ship tie-ups before his regular shift all tihe time and makes a lot but is one big CHEAPSKATE. he's also a lonely jerk who hasn't had a girlfriend in 15 years and is effectively a virgin, due to the lack of play he gets.