Why does rotten fruit taste like booze?

because it is fermenting on you.

Essentially, it is booze.

Fermentation

A wonder of organic chemistry…. called Fermentation…
http://en.wikipedia.org/wiki/Fermentation_(food)

@JLeslie, you can still post your answer.

Basically bacteria and or yeast is converting the carbohydrates (sugars) inside the fruit into ethanol.

Essentially you could let blueberries ferment and then distill it, thus allowing the alcohol to evaporate then capture and condense it; do this 2 or 3 times, add some water, and you have blueberry vodka.

Note: consuming food that is improperly fermented can lead to botulism

Because some of the fruit sugar has been converted to alcohol.

it has started the boozing process. it is turning into blueberry wine.

eating rotten fruit, hmmmmmm. If there was absolutely nothing else to eat and I was starving maybe. Heh Heh, its like whenever someone says something tastes like shit, I mean howda they know?

@saservp I recall seeing a clip on TV many years ago now of monkeys under a tree getting drunk eating its fermenting fruit that had fallen to the ground. This was an annual event, and hilarious! I think they must have looked forward to it.

Haha, a blast from the past here. I just ate an over ripe Blackberry I picked and it tasted like wine. lol