The pool of jizz left on a girl's back after pull out and shoot. Can be wiped up with about anything

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.

1. The Area that should be checked before emitting a really terrible fart, when farting, or in most cases, about to fart, you should check a good distance of five to seven feet to make sure no innocent bystanders or pensioners are in the area.
2. Used by the military to check the distance is safe before rifing a rocket launcher

The left over remnants from someones shit that are blasted on the back of the toilet.