Nope, not your hair, and not that thing they do in Canada, with brooms and a hunk of granite that has a handle screwed onto it.
I’ve seen curl in use, but never used it before.
Think of it as a browser without the actual browser – you can access URLs with it, and the server will answer with stuff you’d see if you right clicked on the page in your browser and chose “view source.”
It’s got some nice other features, too: for example, you can send a request to the server that you can’t directly send via a browser, such as directly sending a POST or PATCH command. It’s great for testing when you’re not quite getting back what you think you should be getting when you use your page in a browser. If you send the command that *should* be going to the server, seeing what comes back will tell you a lot about whether is sending what you *think* it’s sending.