WaMu has trademarked "Whoo hoo"

I had to give it a second look. It was a banner on top of Calculated Risk, a website I read about economics and finance.

An ad from WaMu, short for Washington Mutual Bank, advertised their WaMu Free Checking (trademarked). As I glanced at the ad I thought I saw a trademark symbol after the word "Whoo hoo!" but wasn't sure. I clicked on the ad which became large enough for this reader to see while wearing glasses with an outdated prescription.

Sure enough, at the far right of the ad (the green area) it appears they have trademarked the word "Whoo hoo!"

This can not be. It's not right.

Trademark or no, I'm going to keep saying my own style of "Whoo hoo!" whenever it feels appropriate to me.