Kaager
A Kaager is a loudmouth who talks too much and thinks they're always right. They're like a dog who barks at everything.
My brother is a Kaager. He argues with the pizza delivery guy over the wrong toppings.
My friend's mom is a Kaager. She fights with the neighbor over a tiny fence.
My dad is a Kaager. He yells at the TV because he thinks it's talking to him.