Delulu

A playful internet term derived from “delusional,” used to describe someone who is humorously unrealistic or overly hopeful about
something.
It’s often used in a light-hearted, joking way to describe a person who believes in an outcome that is extremely unlikely or who confidently expects something that everyone else knows won’t happen. Instead of being harsh, the term carries a fun, meme-like tone—implying that the person is living in their own optimistic fantasy world.

People online often use it to tease friends, influencers, or fictional characters who set impossibly high expectations, make bold assumptions, or stay positive in situations where the odds are clearly against them. The word has become part of modern internet slang, especially in social media comments, fandoms, and comedic posts.