trente- trois

"Dites 33"
"Say 33"
In France, when you are going to the doctor he can ask you to say thirty three, "trente- trois"
 he put his hands on your ribs cage and if he can feel twangs it's means you are in a good health!
now it became a witticism, the doctors have other ways to find if you are in a good shape.
Some 33 in the subway on the 6 Line, station 33rd street