This is the name of a battery operated figure from the Coco x Cinnamoroll collab in the Phillipines from 2024.
It was one of the toys you could choose, if you ordered a drink from the collab; you could also receive a free cooler bag alongside your order.
The figure of Cinnamoroll stands on top of a mound of sand, while wearing red and yellow sunglasses and holding a wooden bat in its left hand. When powered on, the figure of Cinnamoroll can swing down the bat and a watermelon splits open, revealing a Coco-branded drink. When Cinnamoroll raises the bat, the watermelon closes up. Cinnamoroll repeatedly breaks open the melon and lets it close up.