I'll be doing that!
A promise you make when you know you’ll never do it. It’s like lying to yourself.
I’ll be doing that! I said it when I promised to clean my room. I didn’t even do it.
My sister said it when she said she’d do the dishes. She didn’t even wash a plate.
I said it when I told my mom I’d do the laundry. I still have socks on the floor.