The term 'It's a Mouthful' can be solved by the crossword solutions CHAW (4 letters), CUD (3 letters), and ORAL (4 letters). CHAW is a verb meaning to chew something, usually referring to chewing tobacco. CUD is a noun meaning a portion of food that has been chewed and then held in the mouth for a period of time before being swallowed. ORAL is an adjective meaning of or relating to the mouth. Together, these three words describe the phrase 'It's a Mouthful, ' which is used to describe something that is difficult to say or takes a long time to say.