What is what does it mean when a cat loafs?

When a cat "loafs," it refers to a specific posture where the cat sits with its paws tucked underneath its body, resembling a loaf of bread. This is a common and generally indicates the cat is feeling:

Sometimes a "partial loaf" will be seen, where only one paw is tucked. If the cat has their paws tucked all the way under so you cannot see them, it's a "full loaf". Rarely, loafing may indicate discomfort if accompanied by other signs of illness or distress, but in most cases, it's a positive sign.