I think you'd actually be surprised. Being from Belgium, I had never heard of something like it. Doesn't mean it doesn't exist there, but in the UK people are often talking about it (at least by the English people I know), it gets mentioned in probably 60% of QI episodes etc. So yes, a very British thing IMO
Read that thinking you were talking about Felixstowe and it got weirder and weirder....
Read that thinking you were talking about Felixstowe and it got weirder and weirder....