Sentence:  ‘<WSD>Slag</WSD>! Wait till I tell Jacob what we′ve been doing – and I will, you mark my words! He′ll want nowt to do with you then, will he, eh? He′ll see you for what you really are. A cheap and nasty little bitch!' 
Meaning of the word marked with <WSD> tags:  a woman (sometimes a man) who has loose morals relating to sex; a slut