This iconic scene originates from the legendary sitcom 'Friends', specifically the 1999 episode 'The One Where Everybody Finds Out' (Season 5, Episode 14). The clip features Phoebe Buffay (Lisa Kudrow) and Rachel Green (Jennifer Aniston) discussing the secret relationship between Monica Geller and Chandler Bing. After realizing that Monica and Chandler are aware that they have been discovered, Phoebe initiates a hilarious game of social chicken. She utters the convoluted tongue-twister: 'They don't know that we know they know we know!' while gesturing wildly, capturing the peak of the show's comedic writing. This clip is a staple in meme culture for representing complex social dynamics, office politics, and the feeling of having the upper hand in a secret-keeping situation. It perfectly encapsulates the energy of overthinking a situation or engaging in mutual psychological warfare with friends or coworkers. Example captions include: 'Me and the work bestie when we find out who's getting fired' and 'When you and your sibling are both hiding something from your parents but realize you both know.'