The Vitalik Buterin Bulge meme originated from a photograph of the Ethereum co-founder during a public appearance where his choice of attire led to a noticeable and humorous silhouette. The crypto community quickly picked up on the image, turning it into a symbol of 'big brain energy' or extreme 'bullishness' for the Ethereum network. Frequently used on platforms like X (formerly Twitter) and Reddit, the meme often features captions suggesting the bulge is actually a bulky Ledger hardware wallet or simply a physical manifestation of ETH's market potential. It serves as a lighthearted inside joke within the decentralized finance space, blending the technical world of blockchain with classic internet absurdity.