Where I’m from, the hyperbole would go “You’ll get punched.”
It took me a while to understand what you meant because we don’t write anything on our ballots. There are piles of small cards with one candidate (or list) on each, we (are supposed to) pick one of each and put one in the envelope.
But yeah, I agree with your take.
I have one. It’s awesome. But don’t do it if you’re not absolutely sure you want it.