What is the meaning of Chipmunk?

Any of the subtribe Tamiina of small, striped rodents; they are found in North America, with the exception of the Siberian chipmunk which is found primarily in Asia.

To speed up (an audio recording, especially a song), to make the voices high-pitched.

To fill (one's mouth or cheeks) with food.

To stuff (food) into one's mouth or cheeks, sometimes as part of competitive eating.

Source: wiktionary.org