I imagine they've had endless jokey names for each other over the decades
The 'Brenda' name simply derived from Keith and/or Ron seeing a novel on sale by authoress Brenda Jagger. (Her first tome, Verity, was published in 1980). If memory serves me correctly, the novel was seen on sale in Paris.
So, Joey - it could even have been late 1982. Or 1983, which was rather Paris-y, Stains-wise. I think it unlikely to have been 1984, although Keith did 'jet' to Paris in February 1984. I don't know of the Stains being together in Paris in 1984. So, it might even have been 1985. (The Stains were back in Paris in January 1985) but that feels later than I remember. Perhaps, just perhaps, it was in Amsterdam in late 1984. 
Hope this helps at least a tiddly bit. If all else fails, could you not resort to a boozy brawl / fisticuffs?
X

I suddenly feel like reading!

" I suddenly feel like reading!  "


Two more weeks Bono ................................  Just Two MORE !!!!! :
( Gonna Be Sweet )


http://www.esquire.com/features/robert-caro-0512-6

" The last chapter of The Passage of Power, the twenty-sixth chapter, is called "Long Enough." It is heartbreaking, foreshadowing the tragedy of Lyndon Johnson that is to come in the final book. Johnson, Caro has just shown us, was a heroic figure in the dark days after the Kennedy assassination. In the first seven weeks of his presidency, Johnson was the embodiment of courage and industry under unimaginable circumstances. The passage of the Civil Rights Act alone was an accomplishment of singular consequence. But his gifts wouldn't last. Soon, Johnson's worst impulses would overtake him — his insecurity, his terrible self-doubt. His greatness would be temporary.

Now Caro reads over those final few pages one last time. His pencil doesn't much touch them.

If he had held in check those forces within him, had conquered himself, for a while, he wasn't going to be able to do it for very long.

But he had done it long enough.

Robert Caro puts down his pencil. For now, this is the last line. "

!!!!


It's Coming ........................................... :


!!!!

" The 'Brenda' name simply derived from Keith and/or Ron seeing a novel on sale by authoress Brenda Jagger. (Her first tome, Verity, was published in 1980). If memory serves me correctly, the novel was seen on sale in Paris.
So, Joey - it could even have been late 1982. Or 1983, which was rather Paris-y, Stains-wise. I think it unlikely to have been 1984, although Keith did 'jet' to Paris in February 1984. I don't know of the Stains being together in Paris in 1984. So, it might even have been 1985. (The Stains were back in Paris in January 1985) but that feels later than I remember. Perhaps, just perhaps, it was in Amsterdam in late 1984.  "


Bless You Waiting On A Friend   ........... you just made young Joey one hundred dollars  . I have been saying
to those cats at the bar that Keef first began to call Mick ...  ( " Brenda " ) right around the time the " Undercover "
album hit the record stores   --- 1983  .   (   .... does anybody remember VINYL  ?!  )  .



" Hit Me Ronnie !!!! "


JJJJJJJJJJJJJJJJJJJJJJJJJJJACKY CAKES !!!!!!!!! ®

Here's a nice Percy photo intended to be posted above

" During the 1976 Tour, Keith was known as Percy.
See:
http://www.dailymail.co.uk/tvshowbiz/article-2133893/Arthur-Ashe-needs-deluxe-be...   "



" The Rolling Stones kept one step ahead of the Fleet Street press pack at the height of their fame by using a series of hilarious pseudonyms when booking into hotels, it has emerged.
An unearthed letter from the band’s manager during their 1976 European tour reveals they checked into hotels under the names of various personalities of the day to evade scandal hungry journalists.
Mick Jagger was given the codename of tennis player Arthur Ashe, Ronnie Wood was the astronomer Patrick Moore, Charlie Watts is referred to as cricket commentator Peter West and Keith Richards was given the name of Gardeners’ World presenter Percy Thrower.   "


Bless You Waiting On A Friend ......................... You Are Much Loved By Joey .