The two crossword solutions for the term 'joke ending' are FEST and STER. FEST is an abbreviation of the word festival, which is a celebration or gathering of people for a particular purpose. It is often used to describe a large gathering of people for a religious or cultural event. STER is an abbreviation of the word jester, which is a person who entertains people with jokes, stories, and other humorous activities. Both of these words can be used to describe the end of a joke, as they both imply a sense of celebration and fun.