dangler

noun5

1. •
   (slang) Any body part that dangles, such as the penis, testicles, uvula, and sometimes tongue.

   • "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."
2. •
   (informal) A dangling modifier, especially a dangling participle.

   • Similarly, participles ending in “ing” often cause danglers in scientific writing: […] — 2014
3. •
   (informal) A large earring that hangs down far.
4. •
   A plotline that is metaphorically left to "dangle" or "hang"; in other words, the plotline is forgotten, phased out and eventually dropped, and thus a resolution is never achieved.
5. •
   (no longer used) One who dangles about (loiters around) others, especially a man chasing after women.

   • ‘You see,’ she cried, ‘what a Herd of Danglers flutter around you […].’ — 1770