The question is seemingly a straightforward one: What do you hear when you play this clip?
Yet the answer for the millions of people who have listened to the short clip since it appeared on TikTok is proving as divisive as the Yanny or Laurel debate.
The seconds-long clip has sparked intense discussion on social media, as people adamantly insist that what they hear is correct.
There are a variety of phrases that the viewers of the ear-teaser report hearing.
They are: "Bart Simpson bouncing,” “rotating pirate ship,” “that isn't my receipt,” “lobsters in motion,” “that is embarrassing,” “lactates in pharmacy,” and "I'm chasing Martian."
A video uploaded by Kegan Stiles has racked up nearly 12 million hits on TikTok in three days and has been widely shared across various social media channels.
Some suggested that football fans would only hear 'That is embarrassing," but others commented it didn't make a difference to them.
"Whatever I read while listening is the one I hear," one person commented.
Another said: "I hear 'That is a person, which isn't even on this list....so that's great!."
A third wrote, "I heard all of them and then I got too 'that is embarrassing' and realised that is probably the right answer."
Another correctly observed: "This is the next 'Laurel or Yanny', I'm calling it."
What do you hear? Let us know in the comments.
Scientists say these sort of illusions highlight the difference between hearing and listening - and break down the relationship between stimuli and sense.
We hear things in our ears, but listening occurs in the brain, as we attribute meaning to the sound - and clips like this illustrate how they can be tricked.
it is the auditory equivalent of Rubin's vase - where some people see two faces and others see a vase.
