noun

• (grammar, informal) A dangling modifier, especially a dangling participle.
  "Similarly, participles ending in “ing” often cause danglers in scientific writing: […]"
• (slang) A penis.
  ""Why do I have to feed her? Why do I have to look after her? I'm a girl. Ort doesn't have to 'cause he's a boy, 'cause he's got a dangler and I haven't.""
• (slang, in the plural) The testicles.
  "Stupid kitten! First he thought he was a fish, now he thinks he's a mole. The vet says it's because he's missing one of his danglers."
• (informal) A large earring that hangs down far.
  "Long hair piled high on top of the head or cut to a short, curvy crop, needs the balance provided by large, dramatic earrings. Those with tresses frizzed into Pre-Raphaelite waves will like the look of huge hoops or ethnic danglers in wood […]"