In the act of deffication, when the feces or turd hits the water with such immense force to create a splash of cold water that then propels itself onto your buttocks and or butthole. Resulting in an uninvited chill surging through your body sometimes giving you goosebumps and what some would like to call the Shemika shakes.

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.