A 'gina rag is a slang term for a wash cloth that is used to clean a woman's vagina.
"You washed your face with my 'gina rag!"
"You're as useful as a 'gina rag."
This word was discovered at a near laundry mat, where a young girl called someone a Bickledinker, in great frustion at the person's stupidity, which lead to the little girl's frustion.
Other words, a name you call someone who is-- Stupid, One track minded,often forgets, and continues to loose things.
That teacher is such a Bickledinker.
Quit being a bickledinker and tell us where your keys are!
Did you bickle your dinker, hm?