As tunah pointed out.. If you are shoving 40-60bb and they are calling with flush draws, then you are profiting massively (if you actually have a made hand) because they aren't getting the proper odds to call.

However, it's unlikely that this is the ideal strategy because your hand is turns face up, and you are only playing against a portion of his range, and this isn't even the ideal play against that range (as usually most wouldn't call).

Also, just a fwiw, if they have high flush draws, this could be considered combo draws because the 3 aces/kings/queens could be outs, etc. So if they have the flush draw with like AQs on a 8hi board they could believe they have 15 outs (9 + 6).