I went on a lads holiday to Tenerife in the late 90's and one of my mates brought a rubber chicken with him, I don't know why, and so we would take it with us and photograph it in various locations and on the plane and I think it came on a couple of other holidays and it gained the name of the holiday chicken. Around the time the Internet was gaining momentum and I was fed up trying to find an original email address that nobody had already taken and I have been pretty much stuck with it as its not the sort of name somebody would choose for registering on a forum.
It has been shortened on a number of forums to holidaychick due to maximum allowable characters which can lead to some interesting advances.
It's a pretty stupid fukin name to be honest