In many ways, that’s the point of dreamcore tiktok — and similar tiktok aesthetics, like “weirdcore” and “nostalgiacore.” the #dreamcore hashtag is true to its name: Web dreamcore is an aesthetic that seeks to represent dreams, often its content is based on modified images to give it a dream touch, as if it were taken from one's own. Web as the name suggests, dreamcore is an aesthetic that’s based in surrealism.