Here is a submission by TM Liam from New York where he defines filler words with a unique perspective. We here at mymeetingroles.com absolutely agree to his version of the term’s definition. Have a look.
RELATED: How to do the role of Ah Counter?

If you think about it, every word is basically just a unique sound we make that hold a unique meaning. Too often, as we speak, these meaningful sounds are accompanied by meaningless ones like ah, um, err etc. or misplaced words such as you know, basically, like, etc. that fill the gaps as we speak. These words are called filler words.
As the Ah Counter today, my role is to keep a track of these fillers words that speakers use during their speech so that you may learn to avoid them. I will make a note of them and present my findings when called upon by the General Evaluator.
RELATED: How to present the Ah Counter report?
Thank you so much TM Liam for this delightful submission.
We here at mymeetingroles.com are creating a pool of wonderful scripts for Toastmasters roles that can work as an inspiration when needed. If you have a script for any role in Toastmasters, do let us know here or mail us at hello@mymeetingroles.com
To check out more scripts to introduce your role as the Ah counter, click here.