drum into

: a percussion instrument consisting of a hollow shell or cylinder with a drumhead stretched over one or both ends that is beaten with the hands or with some implement (such as a stick or wire brush)

: tympanic membrane

: the sound of a drum

: to make a succession of strokes or vibrations that produce sounds like drumbeats

: to beat a drum

: to throb or sound rhythmically

: a long narrow hill or ridge

: drumlin