The definition of marriage cannot be disputed. It’s right there in black and white and it’s been the same since the start of Wikipedia.

This quip satirizes appeals to “traditional” or supposedly fixed definitions of marriage by treating Wikipedia—an editable, relatively recent website—as if it were an ancient authority. The joke exposes how flimsy some definition-based arguments can be: if a definition can be “looked up,” it can also be revised, contested, and shaped by social consensus. By invoking “black and white,” the line mimics legalistic certainty, then undercuts it with the punchline “since the start of Wikipedia,” suggesting that what people present as timeless truth may actually be a product of contemporary culture and information habits.