Straight from "Sit Down, Shut Up And Hang On" by Penny Powers, Chuck Hays, & Anne Mitchell. You probably owe them some royalties. You can buy the whole book on Amazon.
No matter who wrote it down and published it, most of these sayings have been around longer than the book. Some of the younger riders here may not have ever heard them. Now they know where they can go to read them. Good job men. Ride safe.
Thanks for the list. I've heard of most of those. Here's a saying that's on the back of a shirt I bought at Daytona Bike Week 2009 "Honk if you've never seen a gun fired from a motorcycle"