No! Not the Stingy Caterpillar Eyebrows!

After all of my many talks about not letting other kids take advantage of them and taking up for one another, our little eight-year-old, compassionate daughter took action!
We went to a birthday/cookout. There were kids there, mostly a little older than our two. They had one of those huge, inflatables that you can jump in set up in the backyard. All of the kids were enjoying that of course. Well apparently when the adults when inside the teens decided to make the younger ones- our two kids and maybe three others- stay out while they jumped.
According to our two, our son tried to get in and that's when one of the teens told him not to come in. He was upset and went to his other mama- his sister who is not quite even two years older- and pouted a bit. Surprisingly she did something.
"Mama. I made my stingy caterpillar eyebrows and looked at that girl and whispered, 'Don't nobody- I mean NObody mess with my baby brother!'"
Now she was telling us this while Daddy was driving us home last night and being the parents we are, we were up front looking at each other, trying not to burst out into laughter.
I turned around and asked her, "What is the stinky caterpillar eyebrows?"
"No Mama it's the STINGY caterpillar eyebrows. Like this (showing me how her eyebrows wrinkle when she makes a mean face)."
I could see Daddy's stomach going in-and-out while he watched the road ahead. I whispered to Daddy while she continued with her story, "She big and bad with the eyebrows but then she whispered."
"I know right," he commented. "She was about to mess somebody up with the stingy caterpillars!" I snickered.
"And Mama I think all of them teenagers were scared, cause they were just standing there looking at me, like they couldn't believe that this (pointing at herself) little girl was looking that mean!"
"Show me the stingy caterpillar eyebrows again baby girl," Daddy said. I slapped his leg.
And of course she showed him. It was a little more fierce this time and she sound like she was growling.
Daddy whispered, "No those looks they were giving her was probably more like somebody betta come get this lil crazy girl."
I gave Daddy the stingy caterpillar eyebrows.