1) Meteorological (most common association):
Extremely severe and inclement weather. In particular, when bad weather comes as a surprise following an optimisitc forecast.
2) A person or thing that is believed to bring bad luck (Jinks or Jinx)
3) A condition or period of bad luck that appears to have been caused by a specific person or thing.
The sudden and surprising change in weather that resulted in the tsunami is thought to have been caused by The Jinks Effect.
Man, that guy Jinkster just walks this land.
He's going snowbombing next year, he's going to get so much ass it's not even fair. He can get totally mingbagged all night and be ready to get right back on it the next day.
I met my friend for coffe yesterday. started by talking about our lives, soon we high jinks ensued and we ended up acting our stories, standing up, flailing our bodies and people stared at us.