Source : WordNet®

cough up
     v 1: give reluctantly; "He coughed up some money for his
          children's tuition" [syn: {pony up}, {spit up}]
     2: discharge (phlegm or sputum) from the lungs and out of the
        mouth [syn: {expectorate}, {cough out}, {spit up}, {spit
        out}]