noun

• (by extension, sometimes proscribed) Any similar vehicle powered by human pedaling or steered with a handlebar, regardless of the number of wheels.
  "The small, three-wheeled bicycle-type vehicle is probably the lowest-cost set of wheels for routine, in-park patrol use."
• (British, Australia, New Zealand) A motorbike.
• (vulgar slang, usually in compounds specifying a context) A slut; a promiscuous woman.
  "‘What sort of bullying does this sergeant go in for?’ ‘Character assassination,’ she said in a matter-of-fact tone that belied the very real difficulties it was causing her. ‘There’s a lot of whispering about slags and tarts behind my back and sniggers whenever I appear. Half of the men seem to think I’m a dyke who needs curing, the other half think I’m the platoon bicycle. [...]’"
• (climbing) A stabilizing technique in which one foot is pushed down while the other is pulled up.

verb

• (ambitransitive) To travel or exercise using a bicycle.
  "“At least it cannot be your health," said he, as his keen eyes darted over her; "so ardent a bicyclist must be full of energy.” […] “Yes, I bicycle a good deal, Mr. Holmes, and that has something to do with my visit to you to-day.”"
• (television, historical, transitive) To physically ship (a recorded programme) to another broadcasting entity.
  "“Bicycling” defeated the possibility of topicality, a prime production habit of the network-trained production executives staffing the new entity."