Verb
stop operating or functioning
become unfit for consumption or use
Source: WordNetHouse guests should be regarded as perishables: Leave them out too long and they go bad. Erma Bombeck
It may be hard for an egg to turn into a bird: it would be a jolly sight harder for it to learn to fly while remaining an egg. We are like eggs at present. And you cannot go on indefinitely being just an ordinary, decent egg. We must be hatched or go bad. C. S. Lewis
It takes two sides to make a deal, two sides to negotiate and two sides to make it go bad. Gary Bettman
No natural feelings are high or low, holy or unholy, in themselves. They are all holy when God's hand is on the rein. They all go bad when they set up on their own and make themselves into false gods. C. S. Lewis
I like to study failure, actually. My partner says, "I want to know where I'll die so I'll never go there." We want to see what has caused businesses to go bad. The biggest thing that kills them is complacency.... The danger would always be that you rest on your laurels. Warren Buffett
No need for confusion, my dear Mulgrave... Beautiful wine and sour vinegar come from exactly the same source. Curiously if one leaves a bottle of wine open for long enough it will become vinegar. Happily in this house wine never survives long enough to go bad. David Gemmell