n. & v.
n. 1 a non-working male of the honey-bee, whose sole function is to mate with fertile females. 2 an idler. 3 a deep humming sound. 4 a monotonous speech or speaker. 5 a a pipe, esp. of a bagpipe, sounding a continuous note of fixed low pitch. b the note emitted by this. 6 a remote-controlled pilotless aircraft or missile.
v. 1 intr. make a deep humming sound. 2 intr. & tr. speak or utter monotonously. 3 a intr. be idle. b tr. (often foll. by away) idle away (one's time etc.).
[ OE dran, drn prob. f. WG ]