The 'Fellas, If Your Girl' meme is a beloved bait-and-switch format that gained massive traction on Twitter and Reddit around 2018. It starts with a series of descriptive traits that seem to describe a girlfriend, but slowly pivot to describe a fictional character, an animal, or even a historical event. The punchline always concludes with the iconic phrase 'That ain't your girl, that's [Subject].' This meme excels because of its versatility, allowing users to bridge the gap between relationship humor and niche pop-culture references, making it a staple of internet subcultures for years.