Bungaroosh (also spelt bungeroosh, bungarouche, bungarooge, bunglarooge, bunglarouge and other variations) is a composite building material used almost exclusively in the English seaside resort of Brighton and its attached neighbour Hove between the mid-18th and late 19th centuries, when it grew from a fishing village into a large town. Bungaroosh is often found in buildings of that era in the town and in its near neighbours Worthing and Lewes, but is little known elsewhere. In this respect, it is similar to mathematical tiles - another localised building material introduced in, and characteristic of, that era. It can incorporate any of a wide variety of substances and materials, and is used most often in external walls.