meaning of kettledrum
1. A drum made of thin copper in the form of a hemispherical kettle, with parchment stretched over the mouth of it.
2. An informal social party at which a light collation is offered, held in the afternoon or early evening. Cf. Drum, n. , 4 and 5.
3. a large hemispherical brass or copper percussion instrument with a drumhead that can be tuned by adjusting the tension on it