Originally the Advocatus Diaboli, a position in the Catholic Church assigned to argue against canonization of a candidate for sainthood; now commonly used to mean arguing an opposing position for the sake of argument.
↗ Read on WikipediaMentioned once in Daphne Hates Sherry.
Daphne Hates Sherry
Season 4 · Episode 21 · S04E21
“Just to play Devil's advocate...”
From the same episode and category.
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