Khesari means: Hindi name for chickling vetch , a drought-resistant legume grown across South Asia and East Africa. Cheap and hardy, it was historically a famine food, but overconsumption causes lathyrism, a. The word is mostly archaic or historical; you will only encounter it in old texts, period drama, or school history rather than current teen conversation. There is no real cause for parental concern; it is descriptive vocabulary rather than risky behaviour. This is a food-related word and harmless in itself.