Birdy, here is the official Acronyms page www.mumsnet.com/info/acronyms - but there are loads more that are used, which aren't on that list (it probably needs a bit of updating).
For example, many people get confused with the acronym 'EA', which can mean either Emotional Abuse or Estate Agent.
Hahaha, TheBirdsFell, "You can tell tech is a boy'. I'm sure he'd be delighted to be described as 'a boy', given that his description of himself - on his profile - is "a 45 year old grumpy old man" (or something like that)
.
Now, Tech, you using 'long term boyfriend' and 'I blame that Justine' indicates a relationship between you and Justine that none of us had thought about before
