The 'Obama's Last Name' meme is a satirical internet phenomenon that treats former U.S. President Barack Obama's surname as a closely guarded state secret or a profound mystery. While the joke's exact origins are difficult to pinpoint, it gained massive traction in late 2019 across platforms like Reddit, Twitter, and TikTok. The humor stems from the intentional absurdity of ignoring the obvious, often paired with high-intensity reaction images like a person running away from a disaster or a character experiencing a cosmic epiphany. It mocks conspiracy theory culture by treating a basic fact as a forbidden piece of knowledge, often resulting in punchlines where the 'secret' name is revealed to be 'Care' or simply 'Obama' himself.