I heard once about someone setting up a ghetto CMS by hosting a static site on Amazon S3 and then having it pull dynamic content from the Google Docs "Sheets" API somehow. Then you could edit Google spreadsheets to fill it in.
Ghetto as hell but it worked and is almost free to host.
The definition I'm aware of is being hacked together (rapidly and cheaply) and flimsy, as opposed to engineered and robust.
Not to be confused with something that is "engineered" (as in, plenty of resources are dedicated to it) yet still flimsy, like so much of the software we know.
Ghetto as hell but it worked and is almost free to host.