The most American of all activities.
It generally consists of a group of (hopefully hot) young women hopsing around and chanting dumb things like : "Oh Mickey, you're so fine/You're so fine you blow my mind, hey Mickey",
while smiling 24/7 and moving their (hopefully sexy)bodies. It is mainly associated with blonde all american girls, though recently more and more black, latin and asian girls appear on chearleading teams.
-Chearleaders are the reason why a lot of fellas watch football and basketball matches.
Mum: Wow, look these girls are really doing a good job, this is so artisitic and athletic. And they are all so happy. This is what makes our country great.
Father: I'd do the blonde one in the middle.
Mum: How rude! Shut up. That's not what cheerleading is about!
Son: Me too, daddy