I recently ran across the term ‘jilling off’ (slang for female masturbation), which apparently is a term that was invented specifically to differentiate from ‘jacking off’ (slang for male masturbation).

I’m assuming that Jack and Jill (of nursery rhyme fame) were the underlying concepts for this new phrase.

My questions:

- how long has the term been around?

- is it norma loquendi?

- are there other, similar neologisms that have evolved to depict gender based sexual activity words?