A merbist is:

1. A person who is dedicated to the economic or medicinal uses of Merb.
2. One skilled in the harvesting and collection of medicinal code (see Ruby).
3. One trained or skilled in the therapeutic use of merbal code.
4. Traditional French merbist: one who is trained or skilled in the dispensing of merbal prescriptions; traditional French Merb doctor. Similarly, Traditional Ruby Merbist: one who is trained or skilled in the dispensing of merbal prescriptions in the Rubyist tradition.

A merbist is a professional trained in merbism, the use of Merb (also called merbivorism or merbiism) to treat others.