the act of fourplay, though it is when a man is fingering a girl with one on each finger of both his hands, one on each toe on both his feet, one giving him a blowjob, one sucking his balls, one licking his gooch and one rimming him and one on his face; fourplay with 25 girls at the same time.

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.