What is Woolly?
Woolly is (adj) 1. made out of wool She wore a woolly hat. 2. looking like wool Little woolly clouds floated past in the sky. 3. not clear His explanation was really very woolly. (NOTE: woollier – woolliest) (noun) a knitted piece of clothing made of wool (informal.) Don’t forget to take a woolly – it’s quite cold today. October – it’s time to get your winter woollies out. (NOTE: The plural is woollies.)
source: Easier English, Student Dictionary Upper Intermediate Level