From Mother Goose and Grimm:
The relevant senses of the verb spoil, from NOAD2:
[ no obj. ] (of food) become unfit for eating: I’ve got some ham that’ll spoil if we don’t eat it tonight.
harm the character of (a child) by being too lenient or indulgent: the last thing I want to do is spoil Thomas | (as adj. spoiled): a spoiled child.
