Haha, it's pretty simple as far as I know. Peaches have really soft skin, and thus if you drop them or bang them around they show bruising really easily (as opposed to say, a melon with a hard shell, or an orange with a peel that doesn't show bruising). read more
Peaches have really soft skin, and thus if you drop them or bang them around they show bruising really easily (as opposed to say, a melon with a hard shell, or an orange with a peel that doesn’t show bruising). Therefore if you bruise like a peach, it just means you bruise or get hurt really easily, and by extension, it can also mean you’re fragile. read more
Peaches are a soft fruit, and rough handling damages the flesh. This damage to the fruit is known as 'bruising'. Therefore to say that you bruise like a peach means that you bruise very easily. Hope this makes it clearer for you. read more