Clapham Junction

Anyone ever heard or used the phrase “it’s like clapham junction” to denote a busy space/time?

No. Me neither. But Marc seems to think everyone knows it and uses it on a daily basis.

So I made up my own phrase to use when he used “clapham junction”. Ladies and Gents I present to you:

“elephants underpants”

Try to use it in a sentance today :)