Source : WordNet®

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