A person who has assumed the role of celebrity among geek peers, but remains a nonentity to the rest of the world; most often through a high profile association with software or web based services that become particularly popular.
"That Marc Andreessen was a geekstar when he founded Netscape, but Bill Gates, well, people might aspire to his wealth, but nobody in their right mind would want to be him."
a very tall guy with lazy eyes
Geek star is a freak star.
An oxymoron: A person who is considered to be foolish, socially inept, and/or clumsy but at the same time many people like/appriciate/love them which is why Star is added to capture the celebrity like part of the term.
Original Meaning Of Geek: Fool