What sort of drink is Hawaiian POG juice?

It is a fruit juice made up of passion fruit, orange juice, and guava.

POG, or Passion Orange Guava, is a tropical juice drink created in 1971 by a food product consultant named Mary Soon, who worked for Haleakala Dairy on Maui, Hawaii. The name POG is an acronym for three fruits from which it is made: passionfruit, orange, and guava.

There is an interesting link to a popular school game in Hawaii in the 1990s called POG in which kids stack the cardboard milk lids as high as they could and then drop a weight on them to see them scatter. The game was done with the milk caps of the Haleakala Dairy company which happened to be the same company that developed the POG juice drink. So the company started adding the letters POG to the top of the milk caps.

https://en.wikipedia.org/wiki/Pog_(drink)