the action of holding a down and begrudging attitude towards cold fall and winter months, complaining about the weather, suffering from seasonal affective disorder, and basically dedicating a quarter of your life to complaining over seasons you can't control.
Dude: Aw man snow! I HATE this time of year! I'm going to have to drive in this, and shovel this.
Guy: Didn't you grow up in Michigan?
Dude: This totally SUCKS!
Guy: Dude, stop negevembering! You're bringing me down!