It can, yes.
Vomit
You will vomit!
Popcorn as such isn't anything special. Neither particularly good or bad unless you eat huge amounts. What's usually the trouble is that we usually have them with seasoning - butter and salt. Eating too much of those is bad.
no
you vomit or die
Not naturally, only if you consume too much.
if you eat too much you will get fat.
I have seen many videos of hamsters eating popcorn, so I do not see the harm as long as it does not have too much salt and butter on it, since that can upset their stomachs and lead to diarrhea, which can be lethal to hamsters. I am sure you can give popcorn to a hamster as a treat, but don't make it a daily thing to give it.
if you drink too much then yes
yes i have tried it. it was awful
Are you stupid? Eating too much salt is caused by eating salty foods..