1. People who beat or play drums; drummers.
Usage: Plural form; literal sense referring to musicians.
2. People who actively promote or publicize something; enthusiastic advocates or boosters.
Usage: Figurative sense; informal.

Examples

• The drumbeaters in the marching band kept perfect rhythm throughout the parade.
• The company hired several drumbeaters to promote their new product at the trade show.
• Political drumbeaters worked tirelessly to build support for the candidate.
• Jazz ensembles often feature talented drumbeaters who improvise complex rhythms.
• The drumbeaters for the environmental movement have been raising awareness about climate change.