Wiktionary
interj. (context informal dated British English) Used to express disapproval or dissatisfaction
Usage examples of "poor show".
We endeavored to divert her mind from the recent tragedies by a round of amusements, though with poor Weymouth's body still at the mercy of unknown waters Smith and I made but a poor show of gayety.
Perhaps he had forgotten I was there, or perhaps after the poor show I gave outside this afternoon he thought I wouldn't understand.
I would wager that your men would make but a very poor show of it if it came to fighting.
It would be a very poor show if the Ho-Pak's depositors were wiped out, perhaps just because of poor judgment by Richard Kwang and the lack of a benevolent decision by those who could avoid such a disaster if they wished perhaps to great profit.