Yes it is, as it contains ingredients in it, that in the longrun can be harmful to your body. It's pretty much common sense that you wouldn't eat it.
The ChapStick is up your butt.
Nothing happens
you die
pain
You Die
you die...
You can get chemical burns along your throat and stomach if you swallow lye.
chapstick was invented in the early 1800s
You burp bubbles
It depends on how much you swallow. If it is a large amount, you could get diarrhea and/or vomit.
This too will pass.