The term 'What May Float Your Boat' can be solved by the seven-letter word 'PONTOON'. A PONTOON is a type of boat that is typically flat-bottomed and made from aluminum or other lightweight materials. It is designed to float on the surface of the water and is often used for recreational activities such as fishing, swimming, and sunbathing. PONTOON boats are also popular for their stability and ease of maneuverability.