The story
Various theories have been proposed (see the etymology of bunny chow on Wikipedia); however, the OED states that the most likely etymology is bania (“Bania caste; merchant”) + chow.
Etymology from Wiktionary, CC BY-SA 4.0.
bunny chow
Today it means: Curry served in a hollowed-out loaf of bread, sold as a takeaway in some cafeterias. Full definition →