: to gently push or rub your nose or face against (someone or something) to show affection.

What does it mean when a girl nuzzles you?

If you nuzzle someone or something, you gently rub your nose and mouth against them to show affection. She nuzzled me and I cuddled her.

What does nuzzle up mean?

to touch, rub, or press something or someone gently and/or in a way that shows your love, especially with the head or nose, usually with small repeated movements: My dog came and nuzzled my foot to try and cheer me up. The kittens like to nuzzle up against/up to their mother.