Seems we're getting more towards the cutesy euphemisms than the
actually deceptive terms. Which reminds me of a dish I had last week:
hormone in miso sauce. Turns out it wasn't even sweetbreads or
anything like that: it was pig intestines. I thought they were delicious,
as do I find most offal, including lamb, turkey, or bull balls (@BamaVol,
@Pa Kettle) if fried in decent oil.

Speaking of things with a slightly racy edge, how about "soft roe"?