What is what does it mean when your cat nibbles on you?

A cat nibbling on you, also known as a "love bite," can mean a few different things:

It's important to note the context of the nibble. If it's gentle and accompanied by purring or other positive behaviors, it's likely a sign of affection. If it's harder or accompanied by hissing or swatting, it could be a sign of overstimulation or annoyance.