The 'I Guarantee It' meme features George Zimmer, the founder and former CEO of the clothing retailer Men's Wearhouse. It originates from the company's long-running television commercials where Zimmer delivered his trademark catchphrase, 'You’re going to like the way you look. I guarantee it.' The image of Zimmer, known for his distinctive beard and gravelly voice, became an internet staple around 2012 on platforms like Reddit and Imgur. It is primarily used as an image macro to predict an inevitable outcome or to vouch for the certainty of a specific situation, often with a humorous or sarcastic tone regarding relatable life experiences.