I grew up with the word “hand muff,” a cozy fluffy tube to keep hands warm in winter.

Nowadays whenever someone says “muff,” someone else giggles 🙄
I grew up with the word “hand muff,” a cozy fluffy tube to keep hands warm in winter.

Nowadays whenever someone says “muff,” someone else giggles 🙄
Circa 1699 per OED. Figurative extension of the existing meaning.
https://grammarphobia.com/blog/2017/03/muff.html