n. refers to the flattened mass of poo embedded in your underwear after mistaking the need to flatulate with needing to poop. Only occurs while sitting and usually when one is propped on one ass cheek to ease the passage of the perceived gas bubble (which is actually a shit in the chute). Frequently happens when one is dressed for work and while driving.

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.