Burnout said: Maybe it's a reference to Yun Donuts, and that scene in the Gold Badge Marisa story- The one where Pon Lion makes the little Reimu EXPLODE.
Donuts kill yukkuri dead, man.
Then it's parody (if it's a shout out to the original) or crossover (if there's a direct relationship with the original). meta would mean this has something to do with RL.