We as humans have a lot of emotions. Happy, sad, angry,shocked...the list goes on. One of the problems of having such complex feelings is trying to put them into words. Take happy for example. This covers the simple pleasure of talking to a friend to the ecstatic screams of someone who has just been proposed to. Anger covers the miffed to the furious . Emotions are often abstract nouns, we feel them and to some extent can see them by someone's exterior actions or expression but if you haven't experienced them there is no way to describe them.
Therefore when a new word comes along to describe something more definitively its no wonder we latch onto it. Steven Fry in his series Planet Word pointed out that by having a wider vocabulary we can pin point how we feel, therefore allowing others to understand the pragmatics. If you were to look at urban dictionary almost every variation of emotion is covered. The feeling after days of walking on a DofE walk is named as a "DofE hangover" for example. We create new words to describe things like bitter sweet.
Reem may make some of us cringe, the basic "ee" noise elongated like some animal squawk. But it has its place in the lexis as long as it is said by its users. Its not too genetic, whilst one may say that a pair of shoes or a new phone was "reem" good exam results or an interesting tweet is unlikely to be tagged so. Its probably wont over take good anytime soon but it covers what its user wants to convey. The same as omnishambles does. When we find a word that exactly covers what we mean, the bittersweet words. It doesn't matter where they come from, as long as they are understood.
