According to Jim Day, Players Hate the Woos

[camisadelgolf]

I'm still not understanding. I've never heard it.

Is it a solitary thing? If so, how does anybody hear it?

Is it a group thing? If so, how does everyone know when to do it together?

It's mostly a solitary thing. You'll hear some scattered wooing fairly early in the game, and people gradually do it more and more (especially not long after last call). People woo loudly, and a lot of them are clearly audible on live broadcasts.

[Yachtzee]

If the Reds want a cool fan participation thing, they could always play the Blue Danube Waltz. I think it was a tradition at Crosley where everyone would clap or stomp it out. Da-dah Da-dah Duh Duh, stomp stomp, stomp stomp. Much less annoying than random woos.