Like 'sickening' but when you're being made sick to the stomach by people who are being dicks or dicking about.
How much did they charge you for parking?
Nothing for the first hour and then $100,000,000 per hour after...
Didn't you read the sign?
They didn't have a sign...
That's dickening.
Someone tantamount to being a complete and utter cunt.
Passive-aggressive, manipulative and sociopathic types often tread the line between being your friends and being complete cunts. Often it would take just one word or action to confirm their true intentions which are never honourable anyway.
T: "How's Gerry?"
C: "Being a real tantacunt lately..."
T: "How so?"
C: "Too many compliments."