[Vex]

[ QUOTE ]
CO either has an 8, and was limping along in the flop. Since it was checked to him on the turn, he bet and got no action.

or
he had a T, was worried about an overpair or third 8 on the flop, and with the turn now doesn't care what you have.

[/ QUOTE ]

I don't think you could have a solid enough read here to fold getting those odds. The only thing you can be scared of here is an eight, a ten, pocket nines, or a backdoored flush. Meanwhile, any pocket pair, any A, or any 9 would bet.

It's probably not a bluff, but it could very well be a bet with a dominated hand, because I don't think Villain would put Hero on his hand because of the weakness shown on the turn. I think that getting those odds you have to call.