Errr ~ Not that I know of, it's a local expression much loved of some Sotonians of the 50s and 60s (of which I was one)
I believe it comes from the habit of many natives of that fair city (in those days, of course, 'twas but a town) of sniffing at the end of a statement.
For example one might hear them say "Saints had a good win last night, didn't they. <SNIFF>" (Note the lack of a question mark because this is a statement that you are expected to agree with and that the sniff is included within the inverted commas making it part of the speech)
In this case <SNIFF> indicates a loud two part rising inhalation via the olfactory organ not dissimilar to the rising intonation so beloved of our Antipodean cousins. The effect is achieved by sniffing noisily through first one nostril and then immediately through the other, producing two distinct notes that have the effect of turning a statement into a question that requires no answer as your reply is not really expected.
A very similar sniff is used in Southampton and other parts of Hampshire to indicate disapproval as in:
"She's no better than she ought to be <SNIFF>" ~ an expression oft used by my late mother (without the SNIFF of course) and an expression I have never quite understood but use myself as it says so much whilst saying nothing at all.
Next time we meet remind me and I shall give you a demonstration. My mother, a true native of Southampton, thought it very vulgar and common and my brother and I dared not use it within her hearing. Come to that neither did my Father to whom it was almost second nature when conversing with his business chums.
I'm sure others here will have similar memories from their native lands.
