Meaning

noun hosiery consisting of a cloth covering for the foot; worn inside the shoe; reaches to between the ankle and the knee

noun a truncated cloth cone mounted on a mast; used (e.g., at airports) to show the direction of the wind

verb hit hard

originFrom socks (“a cat’s paws that are a different colour from the main body”).

Etymology from Wiktionary, CC BY-SA 3.0