paćenik

1. sufferer; martyr
   Ti siroti paćenici satima čekaju u redu kod lekara. — Those poor sufferers wait in line at the doctor's for hours.
   Ne glumi paćenika, samo te malo boli glava. — Don't play the martyr, you just have a slight headache.

Often used ironically of someone who exaggerates their suffering; the feminine is paćenica.