Cheese scraped 'from under' one's scrotum.

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.

not taking a shower leads to conjunctive build up of sweat,dirt,and lint.....creating a small film of funk under a males scrotum

A reference to the 'cheese' that comes from the area around a mans penis.

This is the term used to describe dried-up, crusty, and usually week-old semen that has been resting on a man's penis or scrotum for an extended period of time. From-Under Cheese comes from sloppy masturbation most of the time, but can also be a result of complete uncleanliness.

Due to bad personal hygene,it is a cheese-like substance that developes under your nuts

Smegma; a white, cheesy sebacceous secretion from under the foreskin. This tends to be very foul smelling stuff. It can also accumulate under the skin covering the clitoris. Be sure to bathe every day so when your lover goes down on you they do not shudder in horror at the rank stankiness on their tongue. Usually fromunder cheese on males only occur in the uncircumcised. But don't cut it, just wash it!