“Madder Than A Wet Hen”
Although we’ve never personally seen a wet hen, we imagine that they would not be too pleased about it. Saying that someone is “madder than a wet hen” means that they’re really angry, and it’s probably best to stay out of their way.
“Fixin’ To”
This one might be confusing to non-southerners, but it’s a common expression that you can easily familiarize yourself with. It simply means that someone is about to do something. For example, if you ask them what they’re up to, they might respond by saying that they’re fixin’ to do some laundry.