Abbreviations.

[Breakfastbunny]

Is there a listing to explain all the abbreviations?

Yes, there's a drop down near the top,of the page, where it says 'talk' and the 'acronyms' link is there;

www.mumsnet.com/info/acronyms

Thats the smilies what about the abbreviations?

Breakfast, the link that Auntie kindly gave you is for the Acronyms/abbreviations.