Without exception, there is no good reason, ever, for a woman to stick her head out of a vehicle window and yell, "WOOO!"
In fact, I'll go so far as to say the female Wooo noise should be done away with completely. Males don't make this noise. If they are jazzed about something, they actually yell, "YEAAAAH!" That's at least the semblance of a word. Wooo is a sound effect; it's how the children imitate a train whistle, for goodness sakes.
Last night, a somewhat tussled-looking young lady leaned her head out of a pickup truck window on Stratford Road and yelled, "Wooo!" Then she yelled it again, like it was a double-wooo moment. The second Wooo was still hanging in the air as the truck in which she was a passenger turned and headed into the Arby's parking lot. Not only do I dislike Wooo, I can't understand the reasoning for a celebratory noise of any type involving Arby's.