I have learned few more interesting words/wordings:

• iffy: suspicious
• path of least resistance: the easiest option (we use this in Czech as well, nice to know that English people say the same thing)
• it doesn't smell very good: it's probably some dirty business (again, we use this in Czech as well)
• tissue of lies: lot of lies

Apart from this, I would like to make one observation. The Mancunian dialect is not very understandable, no doubt about that. However, I have no idea how does it sound! The other day, I was discussing with one of my colleagues. I mentioned that I don't understand one particular person very well; he replied, yes, that person has a particularly thick Mancunian dialect. Then I mentioned another person I don't understand. He commented in the same way. The point is, these two people speak so differently that I would never guess they come from the same city! What is this Mancunian dialect, then?