You know what? Let's call it chipmunk gift, u gonna use this gift more than me!.
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Определение chipmunk gift в Английский Язык Английский Язык словарь
A seemingly generous present that will benefit the giver as much as the receiver. Origin: On an old Chipmunks Christmas album, Alvin, Simon, and Theodore give Dave a gift. He's overwhelmed with their generosity until he discovers it's an empty bag, which the Chipmunks say is for him to fill with presents and give back to them