It is sort of a jughandle, but the diagrams on wiki don't really do it justice.

These exist on major thoroughfares where the destination road is divided. So you make a right and go to the far left lane, then go into a u-turn in the median where you can make a left turn in the desired direction without worrying about crossing oncoming traffic.

Here's a link, and if you look at Telegraph Rd. just north of Maple (a few hundred yards from where Jimmy Hoffa was last seen alive), you can clearly see the traffic flow: https://www.google.com/maps/place/Telegraph+Rd+%26+W+Maple+R...