A hybrid of "Clue" and "Client" indicating that the client doesn't have a fucking clue about what they are going on about and are generally a costly waste of space.
I had been working for a client for several weeks until I realised they were really a cluent.
A name given to someone who is an inconsiderate arsehole. You typically use this word to replace the person's surname. For example if your name is Mike Oxlong you will now be referred to as Mike Clugen.