In later eras they'll call that 'dancing'. For now, just think of it as an enjoyable mental breakdown.
Cor? ... and tea instead of coffee? Cor blimey, folks.... means Robert is somewhere in the UK. Let's keep listening and we'll pin down his town, sho' nuff. (added later) The aspidistra plant is also known as the cast-iron plant and can grow in almost total darkness. Robert probably lives in an abandoned mine.
Well, Dwight, the 'abandoned mine' ..........is mine. Now behave, or I'll set my aspidistra onto you. There's a cup of tea in the pot if you fancy one.