The term 'BARCELONA BAR BITE' can be summarized by the crossword solution of 'TAPA, ' which is a type of Spanish cuisine. Tapas are small dishes that are served as appetizers or snacks, usually with drinks. They originated in Spain, particularly in the region of Andalusia, and have become popular in other parts of the world. The term 'tapa' is derived from the Spanish verb 'tapar, ' which means 'to cover.' Tapas are typically served in bars and restaurants in Barcelona, making them a popular bar bite.