NinaC, as Red5 said, it is "quote unquote".
I have heard it used in two different ways.
1. When someone is quoting another person's words, or a saying -
they may say something like this -
John F. Kennedy said, quote Ask not what your country
can do for you, but what you can do for your country.unquote
2. But when the text that is to be included within quotes is
a word or a small phrase (such as the one you heard on BBC),
they may say "quote unquote brand strategy.
The listener knows from the context that the term "brand strategy"
is the one that is included within quotes.
As I have observed, there are two reasons for using "quote unquote"
in this type of situation.
1. The person may be using someone else's words (that is they
are not quoting the other person's entire sentence or paragraph,
but rather the person speaking is reporting/borrowing words from
someone else. For example, America is quote unquote winning the war on
terror, but the terrorist incidents are on the rise all over the world.
Here, someone such as Bush or some spokesperson may have
used the words "winning the war on terror", but here the person
is not using their entire sentence but only a part of it, and he/she
is not even mentioning who actually uttered the words "winning the
war on terror".
2. When the speaker wants to emphasize something or
say something sarcastically. Again, looking at the above example,
some listeners may interpret the words "winning the war on terror"
as being used sarcastically since in fact the terrorist incidents are on
the rise.
Sometimes during conversation, people use their two fingers of
each hand to indicate "quote unquote" while they are uttering a
word or phrase, by raising the index finger and the middle
finger of each hand and bending and raising them again a couple of
times. It is as if they are "drawing" quotation marks in the air.
When they do this, they don't say the words "quote unquote" because
this is done by the fingers.
I hope I did not confuse you by the above descriptions,
and I hope the advanced users of this forum will correct me
if what I have written is incorrect.