Other forms: blobs
A blob is a small round mass of something soft. A blob of paint, a blob of cream, blobs everywhere.
It has no fixed shape and no edges worth speaking of, which is why it suits paint, cream and glue. It is deliberately imprecise: a blob is what you call something when the shape does not matter. As a verb it means to fall in such a mass. Note blobby; and that the word is probably imitative, from the same family as bleb and blubber.
1nounblobA small round mass of something soft.
“There was a blob of toothpaste on the bathroom mirror.”
blob is a soft mass.
Middle English blob is probably imitative, from a family of words about soft round wet things — bleb, blubber, bubble. None of them was borrowed from anywhere.
From Middle English blob (“attested in blobby”). Possibly imitative of the sound, similarly to bleb and blubber.
Etymology from Wiktionary, CC BY-SA