Cuffing Season

Cuffing Season is an internet slang term that refers to a period during the fall and winter months when people look for a serious romantic partner or start a committed relationship. It is often used humorously and is based on the idea that during colder months, individuals seek emotional and physical warmth by “cuffing” themselves to someone.

Examples:

My friends are all getting into relationships because it’s cuffing season. They don’t want to be alone during the holidays.
I’m usually single, but this year I’m participating in cuffing season. I want someone to cuddle with and watch movies during this cold weather.