1. To excrete the contents of one's stomach in a projectile manner
2. To chuck away one's earlier chow via the esophagus
3. The latter of the popular womens' game 'Scarf-and-barf"
Syn - barf, puke, ralph, up-check, vomit
Past tense - "Yup, he chowched ALL over them... I think he got the lillies too..."