It means your account is on thin ice and indicates possible blow-ups ahead. (joke - i have no idea wtf that 'pattern' is)
reverse zamboni isn't defined yet, but these are close: 1. Newfoundland lobster trap Originating from an episode of How I Met Your Mother where they discussed multiple Canadian sex acts, the Newfoundland lobster trap involves a girl having sex on top of a guy, and right when he is about to climax, he twists her nipples and yells "Here comes the drawn butter!" Last night, I ran out of sex acts to perform so I had to give her a Newfoundland lobster trap! I would not trade with one unless i was a professional....