Originally Posted by
Tobias-UK
The OP used a number of abbreviations in his OP, I suspect the con-burger is the Concorde Burger, the much maligned/loved/tolerated/liked/disliked burger served in the beloved CCR.
Indeed that was my interpretation too, though it's actually on the menu as the BA Burger, since the same item is available in the First Lounge as well (though it attracts far fewer complaints there, for some unknown reason). There is a Concorde Roast, but that would not be my first choice to order at 11 hrs.