[Dumb Fish x]

That's really tough, I hate plays like this.

I'm inexperienced, so take my rambling with a grain of salt.

But looking at the flop, I guess his most likely holding is trips or AA. I can't see him calling your preflop raise with 9J, 9T or 56s.

The other possibility is a bluff, guessing you are holding two high cards and have totally missed the flop. Afterall, if he hit a great hand, he'd want you to call, not scare you away, and maybe would not have gone all-in with a scary looking bet.

It's a toughie for sure. Will be interested to see what he had if you played it out.