Synonyms/Hypernyms (Ordered by Estimated Frequency) of verb spit_up

2 senses of spit up

Sense 1
cough up, pony up, spit up -- (give reluctantly; "He coughed up some money for his children's tuition")
       => give -- (transfer possession of something concrete or abstract to somebody; "I gave her my money"; "can you give me lessons?"; "She gave the children lots of love and tender loving care")

Sense 2
expectorate, cough up, cough out, spit up, spit out -- (discharge (phlegm or sputum) from the lungs and out of the mouth)
       => exhaust, discharge, expel, eject, release -- (eliminate (a substance); "combustion products are exhausted in the engine"; "the plant releases a gas")