mechista Posted in M Best definition mechista An individual who is a member of the student organization MEChA . (Movimiento Estudiantil Chicano de AztlÃ¡n) The Mechistas organized a protest that took place at the courthouse last Tuesday. How satisfied are you with the definition? Looking for mechista meaning? Delighted that you discovered the greatest determine on our web site! Recently this definition was actually observed 53 times.