on Just Publishing Advice:

You probably use the grammatical expletive very often in your writing. But what is it?
The definition of the word expletive is an oath or a swear word. But in grammar, it means to use a word or phrase to fill out a sentence without adding to the meaning or sense.
The word derives from the Late Latin word, expletivus, which means to fill out.
When you know what you are looking for, you can quickly edit these words with no meaning.