Nerd out - Tradução em português

Estava na inernet, lendo o blog do John Nack ( http://blogs.adobe.com/jnack/ ) e me deparei com o seguinte texto:

Obama via Photoshop
Photographer Pete Souza has captured what's billed as the first digital presidential portrait. Folks have nerded out and parsed the EXIF metadata, learning that the image came from a Canon 5D Mark II and was edited in Adobe Photoshop CS3. NPR features a piece on Souza's history photographing presidents. [Via Bryan O'Neil Hughes, Adam Pratt, and Klaasjan Tukker]

procurei na internet e em dicionários eletrônicos que possuo e nada...alguém sabe o que quer dizer "nerd out"?

thanks in advance!