I’d call it a haunched bridle joint.
I like it because it only comes apart in one direction, unlike a bridle joint, but it’s just as easy to cut.
10 points
Super Quarter-lap Sandwich?
9 points
4 points
*
If it doesn’t have a name then you get to christen it. Might I suggest ‘The Spike Lee Joint’?
4 points
2 points
3 points
It looks like one half of a castle joint.
3 points
The ol’ Hammer-and-Anvil!
I just make that up, but I like it. 😅