The crossword solution for the term 'CRAMMED, WITH 'UP'' is BONED, with 5 letters. The term 'crammed, with 'UP'' means to be filled to capacity, or to be filled with as much as possible. This phrase is often used to describe a room or space that is filled with people or objects. The word 'boned' is a synonym for crammed, and can also be used to describe a situation where something is filled to capacity.