Barbara Kline, a mother-of-two, reportedly suffered sickness and diarrhoea for days after finding a slimy, mystery mass in a bottle of coconut water.
The nurse from Goshen, New York, posted a picture of the stomach-churning discovery on Facebook and said she had accidentally swallowed some.
"I still can't believe this I'm so disgusted it's the only water I ever drink I will never in my life drink it again ... It looks like a freaking octopus just looking at it makes me sick," she wrote in the furious caption.
It's certainly enough to put you off your lunch, but it seems no-one actually knows what the lumpy grey thing is.
"I've got told it looks like a mouse, I got told it looks like a squid, I got told it looks like a bunch of things - that's why I would like for somebody to get it tested for me that has more authority than me," The Sun reported her as saying.