Peepmaster or Mince.

[Colin]

What is the code that you put into the text field when you want some text to pop up when you put the cursor over said text?
 

[Tom]

Ooh! Ooh! I know this! 

I remember it from the DDDDDD days...

You type open square bracket [ no space acronym no space equals sign = no space what you want in the box no space close square bracket ] . Just use the bits in blue, if that makes sense... 

Someone had us all doing this with Roger's name a while back.

[Colin]

Ooh! Ooh! I know this! 

I remember it from the DDDDDD days...

You type open square bracket [ no space acronym no space equals sign = no space what you want in the box no space close square bracket ] . Just use the bits in blue, if that makes sense... 

Someone had us all doing this with Roger's name a while back.

  I remember we were all doing it but couldn't remember how it was done, thanks.

[Roger Kettle]

Don't forget to type open square bracket.

[Colin]

Don't forget to type open square bracket.

That's the bit I missed 

[Mince]

Do this:

[acronym=Roger is a moron!]Guess what![/acronym]

To get this:

Guess what!

[Tom]

Oops! Oops! I missed a bit out, didn't I? 

Sorry... it got off to such a good start as well....

[The Peepmaster]

Well done, Mince!