When someone takes an unusually looooooooong amount of time trying to take a picture of nature in attemps to take a National Geographic-worthy image.
Mother: WHAT are you doing? You've been standing there with your camera for like 20 minutes!
Father: I'm trying to take a good picture of this really neat-looking spider. But I'm having a bit of trouble capturing the dew drops on the web with this camera. I wish I had a better lens.
Kid: UGH! Not another National Geographic Moment!
Father: I'm trying to take a good picture of this really neat-looking spider. But I'm having a bit of trouble capturing the dew drops on the web with this camera. I wish I had a better lens.
Kid: UGH! Not another National Geographic Moment!
by Ranger Debbie June 28, 2010
Get the National Geographic Momentmug. The desensitizing effect of seeing brown skinned women naked in the magazine. Naked black chicks do nothing for you compared to blonds.
Yeah, she might be cute to some guy but it's like I've seen her before. It's the National Geographic Effect, man.
by fadingtoblack October 14, 2012
Get the national geographic effectmug. 
Get the National geographicmug.