Etymology: google.com (search website) gOngfu skill, art
: the ability to quickly answer any given question using internet resources, such as a search engine
Example: "My google-fu is strong this morning." (#insub IRC log, twid and others, circa 2003)
Noun. Created by blending google and kung fu. Allusion to internet searching skill to being a martial art.
My google fu is weak today, can you look for me?
Commenting on to someone re their ability to find something:
Your google fu is mighty!