The crossword solutions for the term FAST BEATLE are CAR. The term FAST BEATLE is a reference to the iconic British rock band, The Beatles. The Beatles were known for their fast-paced and energetic songs, which helped them become one of the most successful and influential bands in history. The three-letter solution CAR is an abbreviation for the word 'CAR, ' which is often used to describe the speed and energy of the Beatles' music.