CTB stands for catch the bus, e.g. commit suicide. It could also stand for "cease to breathe", another suicide reference.

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.

french expression
"comme ta bite" (like your dick)

Acronym for Cup The Balls - The act of gently "cupping" a mans testicles in the palm of the hand while performing oral sex on him.

CTB acronym for Cut Throat Bitch.

(n.) A female that is willing to do whatever it takes and at any cost to get what she wants without regards to ANYTHING!

(origin) Dr. Gregory House, Oct. 2, 2007, Season 04 Episode 02, "The Right Stuff"

(synonyms) Dr. Amber Volakis, Amber, Wilson's girlfriend, Bitch, Lisa Crawford

Abbreviation for Collegetown Bagels. A coffee/bagel/sandwich shop located next to Cornell University in Ithaca, NY.