pep rally noun2 •An extracurricular school activity in which students gather to express support for the school sports team before a game.Students, whether they liked football or not, looked forward to Friday afternoons. Regular seventh period classes were let out early to hold a mass pep rally to support the team. — 2010 •A meeting or gathering for the purpose of instilling enthusiasm and motivation in attenders.When a service improvement process is first rolled out, the training sessions can be somewhat of a pep rally to get employees excited about the effort. — 2009 formspep rallies