The act of acquiring the unlimited ammo cheat and holding the fire button whilst holding the controller against your genitals

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.

The act of masturbating over video games!

See also:

gamesturbation
gameophile
gameophilia
orgames
sonic passion

to play video games with ones self; can become a serious problem with effects such as loss of social life

to play video games with ones self; can become a serious problem with effects such as loss of social life