Rob: I'm Rob.
Sam: And I'm Sam.
Can you wait a second, Rob?
I have to spend a penny.
Rob: What!
You're going shopping now, are you?
We're just about to start the programme!
Sam: No, no, I have to... you know, 'spend a penny'.
Haven't you heard that expression before?
Spend a penny means 'go to the toilet'.
It's an old idiom from the days
when it cost a penny to unlock the door of a public toilet.
Rob: OK, I see.
Well, you're showing your age there, Sam –
most young people today wouldn't know what that phrase meant,
and there aren't many public toilets left nowadays anyway.
Sam: Language changes fast, and new words
and phrases are being created all the time.
In this programme, we'll be learning some modern idioms –
new expressions that have been introduced to English