Beer tax

What you yell before stealing a sip of someone's beer. Yelling this makes it ok.

I was thirsty so I just grabbed the beer out of her hand and pounded it. It's all good tho I called beer tax.

Beer Tax

Any alcohol left at a house after a party. Now belongs to whoever lives in that house.

Person 1: "Hey man, I think I left some beers(alcohol) at your place last night, can I come grab them?"

Person 2: "Fuck no man. That's ours now"

Person 1: "What, why?"

Person 2: "Beer tax, mate."