What it often means
- Hunting play: a 2019 review notes that cat play replays the hunting sequence and stays important in adulthood. Your ankles make convincing prey.
- Pent-up energy: alone all day with nothing to hunt, he unloads on whatever moves when you get home, much like his evening zoomies.
- A kitten habit: if someone played with him by wiggling fingers or toes, he learned that feet are fair game.
- A request: he goes for your ankles right before dinner or when you walk past without looking at him, because it gets a reaction.
- More rarely, redirected aggression or fear: he saw a cat outside and takes it out on you, or he is defending himself, with hissing and flattened ears.