> a dollop is a large indeterminate quantity.

This is definitely the case with relatively solid matter, e.g. a dollop of cream is a fair lump. Some might say a 'blob' or 'gob' too, and I've been known to say 'a dob' and use it as a verb though I don't know whether this isn't just a self-made conglomerate - there seems to be a word cluster here.
For liquids dollop is equivalent to 'a splash', i.e. a *small(ish) amount.

btw tsuwm, what drove you to want to answer the thread's question?