noun

• (informal, childish) A rabbit, especially a juvenile one.
  "Scary-looking rabbits were hopping around Fort Collins. These weren’t your standard cute, fluffy bunnies; they had horn-like growths protruding from their faces and bodies."
• (sports) In basketball, an easy shot (i.e., one right next to the bucket) that is missed.
• (slang, euphemistic) A menstrual pad.
  "A local chemist remembers: My grandmother made home-made sanitary towels from a type of muslin. They were hand-knitted, washed and re-used. Other women used netting and cotton wool. Home-made towels were known as 'bunnies'."
• (cricket) Synonym of rabbit (“batsman frequently dismissed by the same bowler”).

adj

• (skiing) Easy or unchallenging.
  "Let’s start on the bunny slope."

noun

• (UK dialectal) A swelling from a blow; a bump.
• (mining) A sudden enlargement or mass of ore, as opposed to a vein or lode.

noun

• (UK dialectal) A culvert or short covered drain connecting two ditches.
• (UK dialectal) A chine or gully formed by water running over the edge of a cliff; a wooded glen or small ravine opening through the cliff line to the sea.
  "Friar's Cliff and Highcliffe have always been what the second name suggests: cliffs too high to scale easily and with no convenient bunnies, chines or combes."
• (UK dialectal) Any small drain or culvert.
• (UK dialectal) A brick arch or wooden bridge, covered with earth across a drawn or carriage in a water-meadow, just wide enough to allow a hay-wagon to pass over.