"Dark Doodad Nebula." Three words I'd never expect to go together.

Normally, I go to the
APOD site looking for something breathtaking. This isn't exactly breathtaking. Interesting maybe, and it has a funny name. But what really got me was NASA's commentary (below is just an excerpt, click
here if you want to read the whole thing).
"What is that strange dark ribbon on the sky? When observing the great globular cluster NGC 4372, observers frequently take note of a strange dark streak nearly three degrees in length running near it. Unnamed, the streak, actually a long molecular cloud, has become known as the Dark Doodad Nebula. (Doodad is slang for a thingy or a whatchamacallit.) Pictured above in a rich and colorful star-field, the Dark Doodad Nebula can be found sweeping across the image center."
Now NASA's commentary is always peppered with links, so if you want to know more about "globular clusters" or "molecular clouds", that tantilizing information is just a click away. What struck me as funny was not just their inclination to further clarify "doodad" as a "thingy" or "whatchamacallit" (LOL), but the fact that "thingy" and "whatchamacallit" were both links.
Where on earth are THOSE links going to take me? I wondered.
I should've guessed Wikipedia. They have a whole article on placeholder names, a LONG article, listing everything from "doohickey" to "thingamajig".
Maybe I'm a word nerd, but this article cracked me up. Where else are you going to see these ridiculous words so carefully categorized? The placeholder names for things (as above) are in a different section from placeholder names for people ("Joe Shmoe", "Frick and Frack"), places ("Boonies", "Timbucktoo"), and times ("oh-dark-thirty", "half past a freckle").
There were words I'd never heard before ("Joe Snuffy"), and words I thought were missing (shouldn't "dingle-hopper" have a place?).
I regret I'll probably never have a reason to use is this one: "A wigwam for a goose's bridle" which is an Australian answer to a naïve "What is that?" Too funny.
So if you ever hear me utter the words "Up the Boohai hunting pukekos with a long handled shovel", now you'll know the reason why.
I blame it on NASA.