Unexpectedly, Lamb blew a raspberry.
The desk hid Lamb’s paunch, though hiding it wasn’t enough. Lamb could be behind a closed door, and his paunch would remain evident. Because it was there in his voice, let alone his face or his eyes. It was there in the way he blew a raspberry.
— Slow Horses by Mick Herron
Haha, I thought … I … erm, well, I got the meaning. Probably because I was watching the TV series, yeah.