I'd imagine 6 or 7 bottles of 4.5% alcohol vodka's would have you standing on tables singing
They don't make vodka that weak dude. The average beer is about 5 to 7 percent alcohol. The lowest vodka proof I've seen in my years of drinking is White Wolf vodka which is dirt cheap and it's 70 proof, which means it's about 35% alcohol.
if you want that, spark up a spliff.To me it sounds like you're looking for is a buzz.