"Sweathogs" is a term used to refer to a group of high school students in the 1970s television series, "Welcome Back, Kotter." The show, which aired from 1975 to 1979, focused on a teacher, Mr. Kotter, who returns to his alma mater to teach a group of misfit students known as the Sweathogs. The Sweathogs were characterized by their rebellious behavior and humorous antics. The main characters included Vinnie Barbarino, Arnold Horshack, Juan Epstein, and Freddie "Boom Boom" Washington. The series highlighted their struggles and growth, often blending comedy with important life lessons.