—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.).
Etymology: OE dran, draelign prob. f. WG
Useful english dictionary. 2012.