nerdjacker 

A nerd (e.g. musical, computer, or academic nerd) that deviates onto their favorite subject while engaging in conversation with an unsuspecting person, sucking the entire conversation of any discernible interest, joy, or understanding.

Tom's bumbling conversation with Judy on Balkan politics in music class was a testament to the fact he was a true nerdjacker.

nerdjacker by arellan July 17, 2011

nerdjacking 

In conversation, digressing into extreme and/or unnecessary detail about one’s passion (music, coding, gaming) to an otherwise uninitiated layperson, without awareness or acknowledgement of the listener’s rapidly waning interest or lack of understanding of the subject at hand.

Clyde held Stella’s attention briefly, until he began nerdjacking the conversation by talking about World of Warcraft for 4 uncomfortable minutes.

nerdjacking by antilimit June 14, 2011

NERDJAMMER

Loonachic
aka
Michelle

Dude, you are SUCH a NERDJAMMER.

NERDJAMMER by DeevaJay November 13, 2003

Nerdfucker

The one and only curse word that one guys everyone hates knows.

P1: Hey can i borrow a pen
P2: No, nerdfucker.

Nerdfucker by I’macatfish October 5, 2018