fanboi

noun

1. Sometimes fan·boi. an obsessive male fan, especially of comic books, science fiction, video games, music, or electronic devices:Apple fanboys lined up to buy the new phone.

verb (used without object)

2. (of a male fan) to demonstrate intense excitement at the mention or in the presence of a particular celebrity, film, product, etc., especially one associated with popular culture or technology: I don’t usually fanboy over optics, but these binoculars are awesome.