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Allied Peas is a brand of frozen peas.
When Bart asked Marge for a cell phone she said that they couldn't afford one, and told Bart that she was buying frozen peas in installments. Marge looked at a letter from Allied Peas that came in the mail. The letter was warning her that she was behind on her payments, and when she flipped it over there was a message on the back that said "we're not kidding!".
 Behind the Laughter
The Allied Peas mascot is a parody of the Jolly Green Giant.