My wife and I come up with the odd neologism from time to time, for example for a while 'to blair' or 'to tell a blair' was cuurency in our house after Tony Blair gave his speech on Saddam and the WMD. For example "don't you know it's naughty to tell blairs?" or "Are you serious or is that a blair?" It had a meaning of more than a lie, more of a cheeky bare-faced lie that knew it was a lie, which was so preposterous yet the teller still expected it to be swallowed hook line and sinker.

One day my wife came up with 'we have too many respensibilties" which she had meant to say was 'expenses' and 'responsibilities' but they got combined in her drive for economy of word.

Another day the word 'irrelephant' popped into my head out of nowhere. It means 'an irrelevant elephant' Now I just have to find an occasion to use it. Still waiting.