drinking cake batter?

It's just flour, extra sugars and flavorings! Nothing at all that is "bad" for you. Even if you added the eggs and oil, it would still be okay for most people to drink.

That's extremely rich and calorie-heavy, but safe. What makes cake batter potentially unsafe to eat raw are the eggs. Untreated eggs can have salmonella on the shell, and since most people can't or don't crack eggs open properly (flat surface, not on the edge of a bowl or counter), they get shell in the egg itself and contaminate it. Most eggs now are treated with UV or other things that kill the bacteria off, so they're -usually- safe. The warnings about eating raw cake batter are precautionary (especially for pregnant women) measures recommended by lawyers to avoid lawsuits.

As long as there aren't raw eggs in it, cake batter is safe to eat. But, I'd be concerned about the amount of sugar and empty calories in a shake like that.

It's fine since there are no raw eggs in it. Extremely unhealthy, but safe.

Seems fine to drink yes

there is nothing in dry cake mix that can make you ill except an overload of sugar.

It's SAFE .. As long as you don't drink too much .. Could become more than filling