jillybean, on 2024-October-26, 16:21, said:
So, there's a third - drop dead stayman
1nt - 2C I'm going to pass anything you bid
1nt - 2C I'm going to pass anything you bid
As an aside, I always thought this was not really "drop dead" as partner has no choice: "drop dead" is 1NT-3NT or 1♠-4♠ or similar.
Be that as it may, this is, to my understanding, Garbage Stayman: a 3 reply Stayman where Responder does not promise a rebid.
Almost all the search results seem to say the same, see this,this or this.
One other site confuses Garbage with Crawling.