Definition

A person with an obsessive passion for a specific subject (usually technology, gaming, or anime) who has somehow become cool through the collective rebranding of geek culture. Once a slur, now a badge of honor—though the social awkwardness remains a feature, not a bug.

Example Usage

He's such a nerd about network architecture that he named his router after a Tolkien character and has strong opinions about its security protocols.

Source: Merriam-Webster / Cultural terminology