"Fish smell"? I'm cut and i know if I cum all over myself and let it dry I get a smell like smegma on my junk. I'm not trying to be insensitive , I just wonder what it could be? A nice uncut cock is a glory to behold (or hold). I have seen and tasted many. 'You'll figure it out. Most are more aromatic than cut ones but not at all in a bad way usually, just a nice manly aroma. Maybe try lemon juice? It shouldn't hurt you? (and I'm not trying to be a smart ass). I wish you the best. If you clean it really good and peel it back to dry it should be squeeky clean. But what do I know, I don't have a foreskin?