Read the dictionary definition of retch. All definitions for this word.
1. an involuntary spasm of ineffectual vomiting
1. a bad case of the heaves
2. eject the contents of the stomach through the mouth
1. After drinking too much, the students vomited
2. He purged continuously
3. The patient regurgitated the food we gave him last night
3. make an unsuccessful effort to vomit; strain to vomit