BUFF' (4 letters) The term WELL-MUSCLED, INFORMALLY is composed of two crossword solutions: CUT (3 letters) and BUFF (4 letters). CUT is a verb meaning to reduce the size or shape of something by removing material. BUFF is an adjective used to describe someone who is well-muscled and toned. Together, they form the phrase WELL-MUSCLED, INFORMALLY, which is often used to describe someone with a strong, muscular physique.