Swell Time can be described as a fun and enjoyable experience, and this is reflected in the crossword solutions for the term. The first solution is 'BALL', which is a popular activity that people of all ages can enjoy. The second solution is 'BLAST', which is a slang term for an exciting and enjoyable event. Finally, the third solution is 'GAS', which is a term used to describe something that is funny or entertaining. All of these solutions reflect the idea of having a swell time.