Hand Tax

Its the extra money you pay someone back just to make up for them paying for you in the first place.

The tickets to the movie were $62.75 after hand tax I just gave him $70.

Manual Tax

The obligatory price hike, often at least a grand, on any used vehicle which has a manual transmission.

Guy 1: "So I'm thinking of selling my old Mitsubishi Sigma wagon. Been parked a while, I don't even know if it still runs."
Guy 2: "Auto or Manual?"
Guy 1: "Uh, manual. Why?"
Guy 2: "Put it on an auction site and start the bidding at a thousand. Manual Tax."

sister tax

when a brother causes dissatisfaction or disappointment towards a sister, so the brother must compensate for such behavior through a requested action from the sister.

mother: "go clean your room"
brother: "i'm not helping you."
sister: "sister tax, you have to clean a quarter of my room"
brother: "fine"

tax rich

during the months of February-April when people get their income tax back and quit their job.

Betty Lou just quit her housekeeping job at the hotel cause now she is tax rich

douche tax

The inflated cost of an item due to it being sold in a particularly affluent or corporate location.

That sandwich I bought at lunch was way overpriced.

Yeah, it's the douche tax from working downtown.

Syrup Tax

Syrup tax or syrup taxing is the terminology commonly associated with getting your ass kicked by a Royal Canadian Mounted Policeman.

Doug won't be doing that again, eh, the fuzz put a syrup taxing on him he won't soon forget, eh. Yous got a beer?

mall tax

The higher price you pay for an item at a mall versus a big box retailer or online

"I needed a new coffee maker, but Target was sold out of the Cuisinart, so I had no choice but to go to Sears and pay the Mall Tax."