A short hand expression for stealthily stating that something excites you so much that you achieved an erection, or "Set my Dick on Hard". This is a thinly veiled reference to a Star Trek phaser where a person could set different power levels for that weapon, with kill being the highest setting. Settings one's dick on hard would be the highest level of excitement a person could generate via their phallus.

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.