A fork of Rural Dictionary
(greh-shum-ing) Verb: The Act of having any sort of sexual relation on or inside any school property. Derived in 2011 by a Bakersfield, CA news story involving several brothers, with the last name of "Gresham" being expelled from KHSD for making whoopie on a school campus, with other girls.
Guy: Hey whats up babe? Girl: Nothin, you wanna have some fun after 2nd period? Guy: You thinkin what i'm thinkin? Girl: Get ready to start greshaming babe Guy: Oh Yeah.!!