Originally posted by pnj
teeter-totter = (not sure what the author ment but..) these are those things kids play on that are a plank that is supported in the center. one side is on the ground and when you ride over it your weight causes the end in the air to fall to the earth, enableing you to ride over it.
Yep. Here's an example:
http://www.pinkbike.com/php/pod.php3?image=42148