Wiktionary
ad absurdum
adv. To the point of absurdity.
Usage examples of "ad absurdum".
But the younger priest was visibly annoyed, and sought to draw the incident out ad absurdum in order to find grounds for quashing the fool.
But a Zeno-like reductio ad absurdum isn't necessary for an acceptance of the reality of continuity beyond reasonable doubt to the satisfaction of common sense and experience.