They meant hermaphrodite. Male flowers appearing on your otherwise mostly female plant.
Yes, all your plants might get seed, because of those “yellow flowers” opening up and releasing their pollen. This pollen could’ve been blown onto any of your other plants, and of course it probably self pollinated as well. You need to remove any male flowers the instant they show, and hopefully before they open up and blow their load.
Some seeds won’t necessarily be the end of the world. Look on the bright side, you might have mostly feminized seeds for next season, lol, although with a higher chance of hermaphroditism themselves.
We just had a unfortunate fellow that grew a male plant to maturity and didn’t know, at least if your plant is mostly female, you will still have decent smoke, pure males are not very good for smoke at all.
Here is a link to that thread so you can see what a full male looks like:
~MacG