out over one’s skis
other—Gloss: being ahead of oneself or behaving rashly. «Some advertisers like Coca-Cola have expressed surprise that Beacon then required users to take action if they did not want the messages sent out. “This is a bit of an example of Facebook being, as we refer to it, ‘out over your skis.’ They got a little bit ahead of themselves.”» —“Apologetic, Facebook Changes Ad Program” by Louise Story New York Times Dec. 6, 2007. (source: Double-Tongued Dictionary)
Further reading
The word filibuster has a long and colorful history, going back to the days when pirates roamed the high seas. Today it refers to hijacking a piece of legislation. Plus, the language of yoga teachers: When doing a guided meditation, you may hear...
An anadrome is a word that forms a whole new word when you spell it backwards. For example, the word “stressed” spelled backwards is “desserts.” Some people’s first names are anadromes. There’s the girl named Noel...
This is sort of interesting. You would think that something like this would have originated in the skiing world, and yet in 21 years as a skier (and 8 on the US Ski Team) I’ve never heard it.
Maybe it’s referring to water skiing?