Sorry, I must be missing something.
I've tried various online dictionaries looking for Boogie-woogie, Jazz, & Jive. None of them show as synonymous with copulation.
Jazz does show a possible derivation from 'jism', but that is it.

I've just checked the first post to ensure it wasn't made on Sunday (April 1st). Where is it that: the derivation pretty well agreed and authenticated

Cheers

Nigel