IPA: /ˈɪəflæp/
KK: /ˈɪrˌflæp/
A piece of material on a hat that can be folded down to cover the ears, providing warmth and protection.
She wore a winter hat with earflaps to keep her ears warm in the cold weather.
Earflap → The word is formed from "ear" (from Old English "eare", meaning the organ of hearing) and "flap" (from Middle English "flappen", meaning to move or swing loosely). An earflap refers to a part of a hat or garment that covers the ears, moving or swinging loosely to provide warmth.
Think of the 'ear' as the part of your body that needs protection and 'flap' as something that moves loosely. This helps you remember that an earflap is something that covers and protects your ears.