Do you think Mentos + Diet Coke will unclog my drain?

Don't know if it will work or not, it might just shoot out all kinds of disgusting drain goop into your face, which would be gross. For the drain however, buy a foaming pape snake. I don't know what brand it is, but it's called a foaming pipe snake. It's a single small bottle that you pour down the drain which reacts and expands into a caustic foam. It'll eat right through just about anything. I've had bad drain problems before and it's been the only thing that's worked. Plus it's only about 3 bucks a bottle.

Jesus I sound like an infomercial

It'll make one heck of a mess. Try using a plunger on it instead.

It did wonders for my clogged brain...I suspect a better result

Probably not. You need something that will dissolve the clog, like lye (draino).

Bad idea. It will geyser around your plunger.

That's a bad idea.

who knows you will only know if u try it but i don't think it will work it sounds dumb

Don't do it.