to snuggle up, to cuddle up
Tu veux te blottir ?
Do you want to snuggle?
J'ai tellement foiré les choses que je voudrais me blottir dans un trou.
I’ve messed things up so badly that I just want to curl up in a hole.
Chaque passager doit donc se blottir contre un autre.
So each passenger has to snuggle up against someone else.
— 2046 (2004)
T'as jamais eu envie de te blottir ?
Have you ever felt like cuddling up?
— Ménage (1986)