Who's The Biggest Potty Mouth on 'Modern Family'?

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Rumor has it that a "swear jar" on the set of Modern Family has been amassing quite the collection thanks to one of the show's featured players, and on Wednesday's episode of Anderson, Jesse Tyler Ferguson reveals the identity of the jar's most infamous benefactor.
"Julie Bowen should be putting basically her whole paycheck in the jar," revealed Jesse to Anderson Cooper, outing the 41-year-old actress as the worst of the potty mouths on set.
Watch the above video for more from Anderson's interview with the Modern Family star, including the backstory on Jesse Tyler Ferguson and Anderson Cooper's friendship before they were famous.
Don't miss the all-new episode airing Wednesday, February 29th. Check your local listings.