Top definition
- A colleague that never gets anything done, just talks and talks and talks.

- One who works solely with his/her mouth, just bosses others around.

- Typically in Management, HR, Accounting, and/or Sales and Marketing.
"My colleague is such a mouth worker, all he does it talk sports with our boss all day."
by reretartar January 21, 2013
Happy St. Patties Day!