The term 'British Bud' can be broken down into two crossword solutions: MATEY (5 letters) and BRITISH (8 letters). MATEY is a slang term used in the United Kingdom to refer to a friend or companion. It is derived from the word 'MATE, ' which is a term of endearment used among friends. BRITISH is an adjective used to describe something that originates from the United Kingdom, its people, or its culture. Together, the two words form the phrase 'British Bud, ' which is used to refer to a British friend or companion.