You cheeky dick waffle
OMG I just found out that Albert Einstein was a real person!! All this time I thought he was a theoretical physicist.
Overview
This is a screenshot of a public X (formerly Twitter) post from user Nikki, who displays a rainbow pride flag and Philippines flag next to their name, with the handle @logosaetos. The post reads: 'OMG I just found out that Albert Einstein was a real person!! All this time I thought he was a theoretical physicist.' The humor comes from accidental wordplay: the poster misinterprets the word 'theoretical' to mean fictional or non-existent, but Albert Einstein was actually a very famous real theoretical physicist, so the poster's statement is accidentally correct even as they believe they are sharing a surprising new discovery, making the content absurdly funny.
Origin notes
The original joke was posted as a public tweet on the X (formerly Twitter) platform by user @logosaetos. This screenshot of the tweet was later reposted to the entertainment platform 9GAG, where it was given the original title 'You cheeky dick waffle' referring to the poster's unintentionally hilarious correct statement.