Derived from the baseball term, in which a player hits a home run, triple, double, and single, in one game, To Hit for the cycle is to become romanticaly involved with a Freshman, Sophmore, Junior, and Senior in over a set period of time, usually a week. They can be in college or in highschool, but its just much funnier if its highschool.
Also, ettiquite suggest that you do not drop standards just for the sake of completing the cycle, because when it comes to hitting for the cycle, respect and class are the key words.
! just Hit for the cycle and boy are my arms tired.