What does rubbing you the wrong way mean?

If someone keeps rubbing you the wrong way, it means they annoy you. It's often used as a way of saying someone annoys you, while not necessarily blaming them for it.

The phrase is related to unintentionally stroking a cat the wrong way, causing the cat's fur to stand up, which annoys the cat.
When a cat is rubbed from tail to head, it stands a cat's fur up and can irritate the follicles. This in turn puts the cat in a bit of a bad mood. Therefore, when a person is said to have "been rubbed the wrong way," it means that the actions or Words of another irritated this person individually.