bang/beat the drum
bang the drum
To voice one's support for something. Quit banging the drum for that candidate—he is simply not qualified for the job.
bang the drumor
beat the drum
If you bang the drum or beat the drum for something or someone, you support them strongly and publicly. The trade secretary promised to `bang the drum for industry'. If the French want to beat the drum on behalf of French culture, good luck to them.