Sometimes you're mad and there's nowhere to send it.
Bwek is where you write that down. You don't send it to anyone. You don't post it anywhere. You just type it. Spelling optional. Long or short, doesn't matter.
When you're done, you crumple it and throw it out. Like wadding up paper, but on your screen. And then it's gone.
After you throw it, a small something comes back. What that is, you find out when you throw one.
Nothing is saved. Nothing is used for training. What you write gets trashed on the spot.
No comfort. No advice. Just a place to throw it when you need one.