I think that you can have a lot of laughs, albeit through extremely black comedy, by looking through lists of medical slang. For example, 45C (or 45 chromosomes) is the medical variation of saying that the person is a few sandwiches short of a picnic, as is microdeckia. Similarly, someone suffering from acute pneumoencephalopathy is an airhead. A pillow consult is an obnoxious patient one wants to smother. Said patient may suffer from rectoencephalitis or neurofaecal syndrome (have a guess). And then there are those who have suffered Gravity-Assisted Concrete Poisoning (again, have a guess).
The Doctor: There's one thing you never put in a trap, if you're smart, if you value your continued existence, if you have any plans about seeing tomorrow, there's one thing you never, ever put in a trap... Me.
-Doctor Who: The Time of Angels