I'm not sure it has a standard English meaning in everyday usage, but it's used in translations of Lacan's writings/seminars to mean exactly what he used it to mean in French: which is somewhere between the meaning you've got in mind and a more general sense of '(intense) enjoyment'.

You'll also find it used in something like the latter sense by Barthes, at least in some of his writings: try S/Z, for example, where it's the kind of pleasure one takes in a 'writerly' text (rather than the more sedate, less actively involved, enjoyment one derives from a 'readerly' text).

As it happens I did mention the term in another context to a native speaker the other day and was informed that as far as she was concerned the word in current usage had reached the stage of no longer really even being ambiguous...

Why doesn't English have the word joicing and for that matter the verb to joice? Missed opportunity there.

Nudge nudge, wink wink...