The feeling of an expanded anus after a large discharge of waste has been released from the body

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.

Abbreviation for sphincter

1. A bone in your butt

2. A term of derision, usually applied to small boys ages 9-11 who are foolish and immature. Such boys are often skinny distance runners. They will usually attach to older roll models, often cousins, and refuse to stop annoying them despite countless hints, suggestions and outright commands to stop.

also they are often named Koby

(verb) to have anal sex with a girl.