1) One who penetrated a potato by (wedging) a hole into the side of it creating the ultimate lube less sex toy for male masturbation.

This is done by getting a large potato and carving a hole (this can also be known as wedging) a hole to a similar size and diameter to your penis and then using the potato to pleasure your self. This can also give a whole new meaning to 'Hot Potato'.

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.