IT'S A LAUGH (2)

When I wrote the 'It's a laugh' heading in an earlier post I was reminded of a segment from one of the excellent Young Ones British comedy series from the '80's. See in the skit above:

First copper: "it's a laugh eh, innit?"
 Second copper: "What is?"
 First copper: "That noise you make in the back of your throat when you hear something funny"

 It's a laugh.