- (colloquial, US, Canada) Amount of weight (thought to be 15 pounds) gained by a student during their first year of college.
1997, Tali Edut, with Dyann Logwood and Ophira Edut, “HUES Magazine: The Making of a Movement”, in Leslie Heywood & Jennifer Drake, editor, Third Wave Agenda: Being Feminist, Doing Feminism, Minneapolis: University of Minnesota Press, ↑ISBN, OL 8070238M, page 85:
- I gained the dreaded "freshman fifteen," whereas Ophi became unnaturally thin from eating too little.
2012 August 9, Kupinski, Tiana, “Getting mean on the Freshman 15”, in Sun Belt Collegiate:
- The freshman fifteen is the stuff of urban legend — a horror story that wreaks havoc on the psyches of high school seniors everywhere, for fear that it too might touch their lives, leaving them crying in the Sears dressing room shopping for pants two sizes larger.