To temporarily enter techno-nerd mode while in a non-hackish context, for example at parties held near computer equipment. Especially used when you need to do or say something highly technical and don't have time to explain: "Pardon me while I geek out for a moment."
See computer geek, propeller head.
(1995-01-18)
Try this search on Wikipedia, OneLook, Google
Nearby terms: gedanken « geef « geek « geek out » GEI » GE Information Services » GEM
