Sadly, I think I may have gotten my first dumper in about 9 batches.
I know green bottles aren't the best, but I opened up another one that was brown (that was room temp) and I got the same off-smell and off-taste. I noticed no matter how carefully I poured, the white specs (which assume are dead yeast) would float around. It's hard to pinpoint the smell/taste, but it almost tasted a touch like fuel/ethyl. With the amount of dry hopping that I did, the fresh flavor that should have been there just tasted like a touch of jet fuel and didn't come through at all.
Ugh. Not sure what I did wrong, but Boo Koo beat me again. I always cover my glass carboys when fermenting.
I'm going to attribute this failure to pulling up too much trub during racking.
Bad news, I have a failure, and it will just force me to look closely into making sure I do everything wrong.
Good news, brew day this Sunday.
I stuck another bottle in the fridge for the hell of it to make sure. Will wait 48 hours and try again, but something tells me it's all bad.