Being very well know but having a bad reputation.

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.

One of many Jean-Chretien-isms... In jest of the poor pronunciation and vocabulary of Canadian Prime Minister Jean Chretien.

Popular, but in a crappy type of way. For example, when you are in a public restroom, and someone in the restroom stall has their phone ring 6 times within 2 minutes - that person is poopular.

Adjective. Popular on the outside, poopy on the inside.

A person who is popular but is not a nice person. People usually call someone a poopular if they are unpopular, this is because poopulars are usually the ones talking about the unpopulars behind thier backs and so on...