[Nick C]

I start thinking it could be a vulnerable made hand like pocket 4's. I wonder if it's simply a huge overbet bluff that's based on the reality that huge bets like this one don't get called very often. I look for draws and see that T9 is possible, but no really strong draw is.

And then I fold pretty much everything besides JJ and 8x. (With AA, I might get stubborn and call.) I suppose that theoretically this makes Villain's play profitable with any two cards, but I feel stupid when I pay off big straightforward overbets, so I'd want to have seen Villain make this play previously before I start calling without a very strong hand.

Edit: I don't think it helps our chances any, either, that our sketchy two-orbit read on Villain is that he's been passive preflop so far. It's not much to go on, I know, but the passive preflop first impression he's made could easily extend into his usual approach to postflop as well.