A flattish soft bread roll, often topped with sesame seeds, designed to be filled with a hamburger.
More example sentences
- Eyes get big and smiles grow wide when a stony shell yields a glistening gray oyster large enough to fill a hamburger bun.
- At 12 o'clock is a plain toasted hamburger bun - perhaps the second most common bread served with southeastern barbeque, after white bread.
- The Jamaican patty is served wrapped in coco bread, which is like an oversize, slightly sweet hamburger bun.