You may be referring to Club 33. To eat there, you must either be a member or be invited by a member. Membership is extremely expensive and there is a five year waiting list the last time I checked.
After the 50th celebration ends, DL is going to give away prizes. It is rumored they will give away some club 33 meals. I wonder what the regulars will think of that but there will probably not be too many given out.