Meaning of spew

(verb) expel or eject (saliva or phlegm or sputum) from the mouth; "The father of the victim spat at the alleged murderer"

eject or send out in large quantities, also metaphorical; "the volcano spews out molten rocks every day"; "The editors of the paper spew out hostile articles about the Presidential candidate"

eject the contents of the stomach through the mouth; "After drinking too much, the students vomited"; "He purged continuously"; "The patient regurgitated the food we gave him last night"