The 'Mike Who Cheese Hairy' meme is a popular phonetic prank designed to trick an unsuspecting person into saying a vulgar phrase out loud. When the name is spoken quickly, it sounds like the phrase 'My pussy's hairy.' This gag follows the long-standing tradition of verbal bait-and-switch jokes like 'Ligma' or 'Hugh Jass.' It saw a massive resurgence on TikTok and YouTube through prank calls and school-setting videos where students would ask teachers to call out the name. The humor lies entirely in the victim's delayed realization of what they actually said, making it a staple of internet trolling culture.