A feeling that you get when winter/cold comes and causes near-instant neediness to have the company of another human beign for you to have physical contact with, preferably sex and/or sleeping together.
May cause impulsively starting a relationship which in turn may cause it to end as soon as the cold goes away.
Man1: Me and Sandra broke up.
Man2: I thought you guys were going really well.
Man1: Nah, it was just winter neediness.