Camera Transmitted Disease. Caused by web-cam whore's that have web cam sex a lot.
OMG. I don't want to cyber with you, I might catch a CTD.
by Will Wonder May 09, 2009
Computer terms, short for "Crash to Desktop." Occurs when you're using a program and it just dies on you, closing out and returning you to your beloved wallpaper.
I was playing the Planetside Beta and must've CTD'd a hundred times!
by Jackson July 23, 2003
A sland started by ambulance drivers. they use it when your about to die so you don't know it. It stands for Circlin the Drain. Or someone old or really messed up.
'We pull up to this accident and this guy is CTD'
by the old December 07, 2004
A medical acronym for "Circling The Drain", referring to a patient who is expected to die soon.
That P.P.P.P.P.T. is C.T.D.
by Michael Zeleny January 26, 2008
1. Computer Transmitted Disease - A virus that can be transmitted between two computers through a variety of internet courses. Main reasons for infection stem from promiscuity with email addresses, exposed ports, planted through a Back Orifice, forgeting to use the patch, forgetting to use trojan protection and reuse of scumbag spyware applications.

2. Cell Transfer Delay - A delay in transfering inmates from one cell to another

3. Charge Transfer Device - Used to stun someone. See taser.

4. Circling The Drain - Someone who is going to die in a short period of time.
1. Bobby's roommate, Bubba, was less than pleased he had given his computer a CTD.

2. Bobby's problems became a larger pain in his rear when he was notified of his CTD.

3. Thinking quickly, Bobbie grabbed a CTD from a passing guard.

4. Bobby knew he was CTD when Bubba grabbed the CTD and said he had CTD because of a CTD in transfer the system.
by topher June 24, 2004
Chronic Tabber Disorder. The disorder of perpetually having 8 or more browser tabs open simultaneously.

Side effects may include:
Multitasking
Freakishly slow browser speeds
Internet death
Person 1: "Dude, WHY do you have SO MANY TABS OPEN?!"
Person 2: "I dunno..."
Person 1: "I think you have CTD."
by CTDur December 25, 2013
Crash Test Dummy: A friend who'll do just about anything to see how it will turn out.
That guy's hot, ask him to dance CTD, DO IT! or Hells yeah you can make it into the pool from the roof, jump CTD!
by I am the CTD April 08, 2010
Crash Test Dummy
An extremely disgusting person, who looks like Buster from Myth Busters after an unbelievably ugly test
by BØDEN January 25, 2010

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