An additional dimension to the traditional three: length, width, depth. It is most often associated with time, although it could very well represent other variables, such as temperature or attraction, as it is, literally, just another quality to describe something.

There are conjectures that there may be ten total dimensions, even more, or even an infinite amount. The thought concerning dimensions past 3D is generally in the realm of the theoretical.
Since we see 2D in 3D (what you actually see is a 2D image), we would see true 3D when looking from 4D.
by Anon Nymous December 21, 2006
Top Definition
It is a korean slang word which means someone who is eccentric and wacky. It is not a word meant to insult a person, instead it is something which is used to complement him/her.

This is most commonly used to describe Korean celebrities with a strong personality. It may also be used to indicate that a person has a very strong individuality or a unique personality.

This is derived from ordinary people being "3d", so a person which is so quirky and thinks outside the box is considered "4d" or 4-dimensional.
Victoria is so 4D! She acts like a kid and yet she dresses up gorgeous! jjang!

I knew my friend was 4D! She always introduces out-of-this-world topics.

Daebak! His 4dness is starting to rub on me!
by Justox Dizaola November 30, 2010
Short for "four digits." A local lottery for punters in Asia, who seek inspiration for the digits in weird ways: from car plate numbers of vehicles involved in accidents to praying for the deceased for the "lucky numbers."
Two "unlucky numbers" gamblers avoid at all costs are: 0000 and 4444—the number 4 rhymes like "death" in Chinese. Yet, these are the very two worth-betting 4D numbers that would likely make a gambler the sole lottery winner.
by MathPlus June 22, 2016
4D in this case is having your senses heightened, so you don't see things in 3D as you usally do, you see them in 4D hear them smell them taste them touch them. it happens when you smoke alot of weed, just before you whitey mainly, so basically being real stoned.
you seem to be able to read body language better, and figure things out, but way too lazy to move, and in my case my limb's such as my legs and arms, seem to move to the sound of music without my control.
everything is warm in 4D and you generally feel good, but you can ffeel down when you realise the faults of your friends, and what makes you feel down is that your thinking about your friends in this kinda way
but end of it's all good.

the term for this 4D orginated in wolverhampton, by a guy called amit
Stax:"Amit are you ok?"
Amit"no everythings 4D"

Emma:"Amit you getting 4D today?"
Amit: "hopefully :D"
by thethongofanime August 09, 2005
Possessing a fourth-dimensional consciousness, also known as "Einsteinian spacetime" consciousness, in which the past, present, and future are experienced simultaneously. Stage of developing human consciousness as a result of surviving "Sitchin Shock," the ontological shock of the realization his basis thesis is true.
"Dude, I passed the acid test, slid through the open door, and now I'm like totally 4D"
by came with them May 30, 2007
Watching a 3-D movie while drinking alcohol or being drunk. Usually done for a poorly rated big budget 3-D Hollywood movie.
"The Green Lantern is gonna suck, but at least we're seeing it 4-D."
by EMarcisak1 January 03, 2012
Masturbating in a 3-d movie, thus adding a fourth dimension to the experience.
"Dude we saw the Muppet Ride at Disney World in 4-D."
by Stephane69 February 03, 2012
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