The 'Girls vs. Boys' meme format, often referred to as 'Locker Room' or 'Time Machine' memes, rose to prominence in early 2019 to highlight exaggerated behavioral differences between the genders. It typically utilizes a two-panel structure where the top panel depicts girls engaging in stereotypical or 'normal' activities, while the bottom panel shows boys engaging in surreal, chaotic, or absurdly epic behavior. While it started with school gym scenarios, the template evolved into complex historical and sci-fi variations. It remains a staple of internet humor for its ability to frame simple everyday situations as legendary battles or bizarre, chaotic adventures.