Drum, v. t. 1. To execute on a drum, as a tune.
2. (With out) To expel ignominiously, with beat of drum; as, to drum out a deserter or rogue from a camp, etc.
3. (With up) To assemble by, or as by, beat of drum; to collect; to gather or draw by solicitation; as, to drum up recruits; to drum up customers.