One way to hold this word: something was fine, then it was left too long or given too much, and now it cannot be used the way it was meant to be. The milk at the back of the fridge is the plainest version. A child who has been handed everything is the same shape of event, only the damage shows up as behaviour instead of smell. Notice where the blame sits in English: the word looks past the thing itself and at whatever was done to it.