The term BE BRATTY can be summarized by three crossword solutions: SASS (4 letters), DISOBEY (7 letters), and ACTUP (5 letters). SASS stands for 'saucy or impudent behavior, ' which is often seen in bratty children. DISOBEY means to not follow orders or instructions, which is another common trait of bratty children. Finally, ACTUP is a slang term meaning to misbehave or cause trouble, which is also a characteristic of bratty behavior.