Verb: To rubber knife. Closely related to whiskey dick. Attempting sexual intercourse with a semi-flacid, half stock erection.

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.

1. An object, made of rubber or other pliable synthetic material, that is shaped like a knife.

2. A device used to generate various band names, i.e., The Rubber Knives, RubbaNife, Da RubbaNyfe Krew, etc.

3. An object used to irritate Adam and scare cats.