Any kind of alcoholic beverage that is bound to leave you in rags (Gin, Whiskey, Brandy, you name it).

The safeguarding of Earth and other worlds from biological cross-contamination (i.e. billionaires with too much time on their hands).

Also known as “planetary protection.” Planetary protection / quarantine “reflects both the unknown nature of the space environment and the desire of the scientific community to preserve the pristine nature of celestial bodies until they can be studied in detail.”

There are two types of interplanetary contamination. Forward contamination is the transfer of viable organisms from Earth to another celestial body. Back contamination is the transfer of extraterrestrial organisms, if such exist, back to the Earth's biosphere.

In ye olden days, they used to recycle spilled booze by soaking it up with a rag and squeezing it out into a vat. This disgusting concoction was resold to the local drunkards who couldn't pay for anything better and didn't give a damn what they poured down their throats so long as it got them good and drunk. In our civilized age, it usually refers to any nondescript low quality alcohol that straddles the line between barely drinkable and a health hazard.