blob

Usually it is just referring to a blob of stuff. But if you're insistent on trying hard to explain all use of the word as a database term, I guess the clearest exception is a link to a review of Blob Wars, a video game about, well, blobs, some years ago.

All that's happened here is that you were walking around with a glitch in your internal dictionary. Happens to everybody. Humans mostly learn words not by purchasing a big book of definitions and reading it, but by inferring their meaning from context. Robert Browning got the idea this way from an old poem he'd read that "twat" meant some sort of headgear for senior nuns. So when he needed a word that rhymed nicely with "bats" in a religious context he picked "twats" and now generations of English students get to laugh at his error when they read his poetry at undergraduate level. You are not likely to be so unlucky.