[cyclonus]

I think its close to bet/fold turn or check behind and fold to a river bet
If he isnt a complete donk, with what kind of hand he calls on the flop here? At minimum a weak spade, maybe a seldom set or some donkish pair/two pair.
With a bet on turn maybe he folds a weak spade like an 7 or 8 or a bad pair/two pair.But this only seems to be appropriate if he is tight enough to lay down a weak flush, if not, this play will be a -EV line.