What is the meaning of the idiom 'prunes and prawns'?

The idiom "Prunes and prawns" refers to something that is considered unappealing or undesirable. It is often used to describe a situation where two contrasting elements are combined, highlighting the oddness or unpleasantness of the pairing. The phrase may also imply that something is overly complicated or difficult to digest, much like the mix of prunes (often associated with health issues) and prawns (considered a delicacy). Overall, it conveys a sense of dissatisfaction or discontent with the situation at hand.