A very important part of an airplane. A brain doctor, or a businesswoman (who was in Conference Room B)
REAL DEFINITION:- Phalanges are the bones at the tip of our fingers (probably why Phoebe knew it). It can also mean troops moving in a synchronized manner, like a single unit.
Phoebe Buffay: Hello, my name is Regina Phalange. I'm a businesswoman in town on business.
Random person with glasses: Oh my god! This plane doesn't even have a phalange!
Sane Person: I think I broke a phalange!