"If wishes were fishes, we'd all be Pope" - No idea.

There are words and phrases that somehow just become a part of our everyday life. We hear them on the radio, on the television, in the local pub, on the street and in the bedroom. They speak to us, even cling to us until they become a part of us.
The quote up top is one of those phrases that has stuck to me.
The thing is, I don't know where I heard it from originally. In fact, I'm not even really sure just what the Hell it means. If wishes where fishes, we'd all be Pope. Does it mean that if wishes were as common as fishes, then we would all get our most cherished wish. To be Pope? Who the Hell wants to be Pope anyway? You have to ride around in that stupid bullet-proof car wearing that stupid hat holding that stupid cane. Hey, maybe it appeals to some folks, but I kinda like my way jeans and flip-flops.
I even Googled the phrase. You know what I found?
- The message boards on deviantART.com. There is one user there who uses it as his/her tagline.
- This blog from some woman in the Philippines. It's actually a pretty good blog. I've been reading it for a few days now. She used the phrase in one of her posts.
- My blog.
That's it. That's all there is. We three are the only ones in the history of the interwebs to use this phrase, or so says the Google Gods. Maybe I'm getting the wording wrong, or maybe the three of us are living in a dream world where this phrase actually exists. Like we are all living the same dream at the same time, the three of us. I think I just freaked myself out!
So I put it to you. Have you A) ever heard this phrase before and/or B) heard of where it came from? What are its origins? I'm just dying to know.
Random Wiki: Wham Bam Slam was a short film featuring the Three Stooges from 1955. It was a Shemp, so no one really gives a shit about it. I think the plot revolved around Moe picking up a girl at the local diner, jumping into bed with her and then dumping her. Or Shemp has a toothache. One or the other.