Im defining drunk as legitamately wasted drunk, not just tipsy drunk. In that case Id say about 7 or 8 and I would be done.
bump 1-3 drinks = chillaxin 4-6 drinks = buzzed 7-9 drinks = feeling great, floating slightly everything flows 10-12 drinks = listening to music, probably won't stop singing/rapping 13-15 drinks = "never happened" 16-17 = lulz drinkin is funz 18+ = probably asleep in the lawn, pissed myself laying in a puddle of puke with my head next to dog shit.
Depends on how fast I drink, but if I take eight shots in three or four hours I'll be pretty fucked. I don't really drink beer, though.
It take me around twelve beers to get me good and drunk. But that's when I party without weed, nowadays I just prefer a six pack and a blunt or two, and I'm feeling fine.