1. The sport of riding on the crest or along the tunnel of a wave, especially while standing or lying on a surfboard. Also called surfboarding.
2. Informal. The activity of casually looking at something that offers numerous options, such as the Internet or television.

The American Heritage® Dictionary of the English Language, Fourth Edition Copyright © 2007, 2000 by Houghton Mifflin Company. Updated in 2009. Published by Houghton Mifflin Company. All rights reserved.