A sub-category of the Inflation Fetish in which a person turns into a human blueberry. Usually through some kind of gum, pie, or liquid. This fetish is mainly known through the popular movie Charlie and the Chocolate Factory, in which a girl named Violet Beauregard chews a stick of gum, turns blue, and fills with blueberry juice until she is completely round and in the shape of a large blueberry.
When I watched that Willy Wonka movie as a kid, I knew I had a thing for Blueberry Inflation
Blueberry Millshake happens when a woman shoves a handful of blueberries up her vagina, then proceeds to have vaginal sex with an unknowing male participant. After the guy realize the vagina doesn't feel like a normal vagina, He doesn't care and keeps going until he blows his load inside her. Once he pulls out the woman pushes the jizz and blueberry mixture out, only to be forced to drink it through a straw by the guy.
Some bitch tried to pull that blueberry surprise shit on me and i wasn't having it so i gave her that blueberrymilkshake instead.