throw up v : 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" [syn: {vomit}, {vomit up}, {purge}, {cast}, {sick}, {cat}, {be sick}, {disgorge}, {regorge}, {retch}, {puke}, {barf}, {spew}, {spue}, {chuck}, {upchuck}, {honk}, {regurgitate}] [ant: {keep down}]