when a girls cell phone goes off on vibrate you shove the entire cell phone into the girls ass. You then take your cell phone and shove it in her mouth and try and get her to have a conversation with her ass. Also called the unanswered phone call or the ass call. Should be done in little brothers bedroom late at night on top of sleeping (or possibly drugged) sibling.

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.