American Dad! Episode 5.17 An Incident at Owl Creek

Sharri and Buckle move into the neighborhood and host a pool party. Stan makes his family exercise various drills to ensure their appearance as guests at the pool party is a success. While eating greasy brisket at the party, Stan stops Roger from telling embarrassing jokes to the other guests by asking them to watch himself do a cannonball into the pool. Because of the brisket, he acquires a stomach reaction upon stepping onto the diving platform.