Party-tax

The "tax" you pay to the host of a party, in form of refund on brought booze.
In countries with a refund system on bottles and cans, it is an unwritten social rule to leave your refund at the party. Party-tax-evasion is considered a very douchy thing to do and can eventually result in social suicide

If you help with cleaning up tomorrow, I'll buy you breakfast with the party-tax.

nut tax

The non-negotiable fee that must be paid to bust a nut in a friend's house

"Listen dude, I don't mind if you do it, but I expect the nut tax up front."

Dickhead Tax

Dickhead Tax - /ˈdikˌhed ˈtaks/- Noun - In a service or customer facing industry, this is a tax that, when levied, adds 25% extra time spent on any task being performed at the request of, or for, someone who blatantly lacks common courtesy.

"That dude was being an ass-bandit, so I charged him the 'Dickhead Tax,' and now his coffee won't be ready for pickup until next Thursday at 4 PM."

Shipping Tax

Amount charged for shipping an item above the actual cost of the item. Used when discussing sites, such as ebay, where sellers will sometimes charge large flat-rate shipping costs in order to try to get more profit from a sale.

I bid low because the shipping tax was outrageous.

doing taxes

Cover up for having sex

Parents say to children: "dont bother us we are doing taxes in our room"

tax cut

what killed off the budget surplus that we once had.

" bush got elected and gave all his rich buddies a nice, fat tax cut."

tax season

a time of the year (usually February-April) where broke people that don't have a job somehow get tax money and act like they're rich. Tax money usually gets spent on Gucci, True Religion, Jordan's, and other unnecessary brands. When their tax money runs out, they go back to being broke.

Bill: Oh my, it's almost tax season again!
Bobby: Broke people that don't have a job somehow get tax money and act like they're rich.