Swinter: The combination of summer and winter together.

A season, especially prominent in the eastern US, characterized by days of winter weather followed by a day of summer weather.

when you dress in winter AND spring clothes in one outfit

(tank top, heavy jacket, jeans, flip flops)

To gain weight to survive the winter. A lot of american do this to look hotter for next summer. All the oil from their fatty skin is often lit on a candle, during Swintereen on the 31st of October.