The term 'HIT IT!' can be summarized by two crossword solutions: BEGIN (5 letters) and STRIKEUPTHEBAND (15 letters). BEGIN is a verb that means to start or initiate something. STRIKEUPTHEBAND is an idiom that is used to express enthusiasm or excitement about something. It is often used as an exclamation to encourage people to take action. Together, these two solutions suggest that the term 'HIT IT!' is used to express enthusiasm and encourage people to take action.