Retarded person on the internet who spams you with the entire alphabet, either correct or not, ending it with Z.
It can also refer to people who mis-spell almost every word or every other word and add or replace a letter with Z for no apparent reason. Most of these people can be found on common sites like Myspace, Gaiaonline, Youtube, or any other large site that can show local text by the public.
Most are doing it just to annoy you.
Others are just that stupid.

As well as being an insult by itself, tard can also be a wonderful, magical, multipurpose suffix that will make insults even more imaginative and quite possibly more insulting.

Be imaginative with your choice of prefix.

Any software programmer who works for Zynga, which produces the worst software on Earth, and also the management at Zynga, that either tolerates incompetence or requires it.

A term used to describe the late Generation y and current Gen Z kids that live in an over-simplified on-demand world of instant material, emotional and general gratification.

The oversimplification of tasks is especially relevent to what is normally something very complicated.

iTards do not have the ability to think for themselves, exhibit no problem solving skills and are unable to do anything unless it involves pressing a single large glassy button.

Google is far too complicated for the average iTard, they would rather just ask someone to find something for them.

a fish eating mammal with a sexy mum. also see: carpet muncher.

Short for borderline intellectual functioning. 1. a bif is not a "downie" but then again not smart either. 2. below average intelligence. 3. George W Bush. 4. politicians in gerneral. Often refers to individuals that wear tacky metal alloys in thier teeth.

The Rolling Theorum is an equation used in current day mathematics. It can be used to find out a large amount of information about geometry when reduced properly (cylinders, specifically, hence the name "Rolling Theorum.")
This equation must be solved for y where x = Z||R and is as follows:

y = ((R²I²CK)/RI) + (2X)/((BA)(R²)(EL))

so, we have to start by dividing the left side of the plus sign. Which leaves us with..

y = (RICK) + (2X)/((BA)(R²)(EL))

Next, we come to the R², which is (RR)

y = (RICK) + (2X)/((BA)(RR)(EL))

And to make it easier to read, we'll leave it as R²

y = (RICK) + (2X)/(BAR²EL)

Now we come to the 2X. We said earlier that it was equal to Z || R, which means Z or R. So let's plug this in..

y = (RICK) + (2(Z || R))/(BAR²EL)

Now, any StarFox fan will recognize this as a Barrel Roll, as 2 times Z or R is a Barrel Roll.

y = (RICK) + (BARREL ROLL)/(BAR²EL)

Simplify BARREL..

y = (RICK) + (BAR²EL ROLL)/(BAR²EL)

divide what's on the right side of the plus sign..

y = RICK + ROLL

AND THERE YOU HAVE IT. Y = RICK ROLL. AND THIS IS TRUELY WHY IT IS CALLED THE ROLLING THEORUM.