A snow (not defined by how many inches that fall) that affects a location not necessarily capable of dealing with snow, thus causing chaos (i.e. traffic jams, school closings, etc.)
A Shut Up cartoon series that airs on Tuesdays and talks about Layta who needs Derf's help because her family has been, as the title says, snowjacked, or as I like to say, being kidnapped during the blizzard.
No one knows how her family were captured or who captured them but it's a funny story in some cases. However, if one's friend/family/boy or girl friend was snowjacked and they asked for help from someone, most will either freak out or regurgitate.
A guy ejaculates into his partner's mouth during oral sex, and then semen is passed back into the mouth of the guy who just ejaculated through kissing.
This can involve multiple partners, and the term can also be used when the guy who just came didn't know his partner was going to transfer his semen back to him.
Fred's girlfriend is giving him oral sex; she ejaculates and she gives him a big wet french kiss before she swallows. Fred's been snowballed!