The ability to find exactly what you need very quickly by implementing the use of certain words and phrases in Google or other similar Internet search engines.
THEM: Hey, what's the capitol of Iceland?
YOU: Why are you asking me? JFGI!
THEM: What? Whats JFGI?
THEM: . . .
THEM: Fuck you!
YOU: Sorry. Didn't mean to be rude.
THEM: No worries. Just tell me to google-fu it next time d00d.