The 'Do Y'all Hear Sumn?' meme is a popular reaction phrase used to express intentional ignorance or to mock someone whose opinion is being disregarded. It gained massive traction on social media around 2018, often paired with images of characters like Squidward from SpongeBob SquarePants looking completely unfazed. The meme captures the essence of selective hearing, making it the go-to response for dodging responsibilities, ignoring unsolicited advice, or playfully dismissing friends in a group chat. Its simple but effective delivery has allowed it to remain a staple of internet culture for years.