The term 'super-popular' can be described by four different crossword solutions: HOT (3 letters), BHOT (4 letters), REDHOT (6 letters), and ALLTHERAGE (10 letters). HOT is an informal word meaning very warm or exciting, while BHOT is an even more intense version of HOT. REDHOT is an even more intense version of BHOT, and ALLTHERAGE is an informal word meaning extremely popular or fashionable. All of these words together describe something that is super-popular.