People are getting a shampoo bottle from their bathroom, and attempting to balance it on their penis.
Then, they are taking a photo and uploading it to Twitter to prove it.
It is unclear who definitely started the challenge but it is thought to be one Twitter user, @hurtpapi.
The user tweeted an anime picture of a man balancing a shampoo bottle down below, alongside the caption “can we get this challenge trending?” and used the hashtag #ShampooChallenge.
— golbat with his mouth closed (@hurtpapi) April 24, 2020
— The Texas Papi (@thatexaspapi) April 28, 2020
— MrBigFetish 🍆🔞 (@MrBigFetish) May 4, 2020
— boyj3 (@boy_j3) May 3, 2020