Is it cool if I drink before my surgery tomorrow?

Only if you have a strong desire to actually die on the operating table. Even drinking water to close to surgery can change how the drugs will affect you and can cause death. Any form of alcohol could create a very deadly reaction.

So, I really hope you are just trolling or that you change your mind and skip the drinks and follow your pre-op instructions.

NO! I am sure they have instructed you to ingest nothing before about 12 hours prior to surgery. The main reason for that is so that you don't throw up after going under anesthesia and choke on your own puke. Alcohol disappears out of your system at the rate of about one ounce per hour so actually you should be OK as long as you lay off 12 hours ahead, but why goof with it? Just lay off immediately. Let me tell you about your "cute doctor"--He/she is not there to be cute, is there to treat you and fix what's wrong. If you are going in for surgery, this is a time to play it straight and honest--no alcohol or other drugs to get you over your jitters.

Just drink some troll-aid.

No it is not cool. It can throw off labs.

Nope.

You put yourself at risk for things like inhaling your vomit (aspiration) and having adverse reactions to anesthesia.

We anesthetize drunks, but we have to do things like put a tube down into their stomachs to empty them out, and will use a breathing tube instead of a less invasive airway.

I hope you're trolling, because this is a disturbing question on a lot of levels.