Sexual Intercourse between two people. Normally when the male is taking the dominant (and therefore energetic) role of thrusting at his colleage/cohort/partner in love.

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.

Paffing is the sexual equivalent to fapping but for females over males. A preferred type of sex by feminists.