The term 'Moves Like a Crab' can be described by two crossword solutions: 'ERASER' (6 letters) and 'SIDLES' (6 letters). ERASER is an action verb that means to rub out or remove something, usually with an implement such as a rubber ERASER. SIDLES is an action verb that means to move sideways or obliquely, often in a stealthy or cautious manner. Together, these two words describe the movement of a crab, which typically moves sideways and obliquely, often in a cautious manner.