I was browsing a gardening store online, and I came across a berry that it advertised as 'deer resistant' (the purple beautyberry). This made me laugh (gladly; not mockingly), because nothing seems to deter deer from what I've heard, and I've never seen a fruiting plant (or any plant) marketed as deer resistant before. We don't have deer problems where I live, but just for the record, what are some more deer resistant edible plants? (Some might not consider the beautyberry berries to be edible, but they technically are supposed to be, and I've read they make great jelly. It should be noted that beautyberry is not squirrel or mockingbird resistant, however, but it's supposed to repel mosquitos and the leaves may stun fish.)
Garlic has done OK outside the fence, as have chives. Neighboring garden had apparent success with potatoes outside the fence (makes sense, the plant is poisonous.) Raspberries (and other bramble fruit) are generally OK. They have not hassled my blueberries as far as I recall, though plenty of smaller beasties go for the fruit. I've had no noticeable trouble with currants.
Many varieties of pepper plants (excluding bell peppers) are deer resistant and generally the hotter the pepper, the more the resistance. The capsaicin chemical that gives peppers their spice are also present in the leaves and stems and deer do not care for it.
It's always worth remembering this about deer resistance/rabbit resistance etc: It's all dependent on how hungry the critters are. If the plant isn't downright poisonous and the animal is hungry enough, it will eat it. Most things marketed as deer resistant are simply whatever is low enough on the menu that a deer will walk past it to eat something else.