Thanks Stewie.

With your and John's help I think I've got enough for one of our group to learn it.

I think John was right with "See if you can put your foot in the door". I'm sure it's "Thermos coffee", i.e. coffee from a flask, and the line that seems to have baffled all of us suddenly struck me (I think!). "You cry till you laugh and laugh until it hurts".

Graham