Stonewall Effect

When members of a marginalized community with a reputation for not defending itself actually defend themselves in a way that sparks not only immediate resistance, but also a long-term movement for equality. Derived from the Stonewall Riots of June, 1969, which are generally regarded as a turning point in the history of LGBT civil rights activism throughout the world.

When the kids from the Glee Club gave the guys from the football team a sound thrashing, it triggered a stonewall effect throughout the school, and nothing was ever the same again.