PyePum is "Pyemaksik gan Pumba"

Pyeongchang is the city in a potato field.

Koreans almost eat domestic potatoes.

They are proud of their potato boy, DO.

DO expresses potato by his hair-cut.

He performs potato dance in closing ceremony of Pyeongchang Olympic.

His group will be called PyePum =Pyemaksik gan Pumba (Tramps gone to the closing ceremony)