I would smoke it, and if its nasty then make hash out of it, but amonia is what weed smells like when your drying it sometimes, so, mabey it is wet and needs to dry before mold comes. and yes cat piss smells like amonia. and a few times when I walked into a drying room, I have been over come buy that nasty smell of amonia, but when it dried it was smooth and nice tasting and serious bomb bud. so dont toss it it might be just wet or mabey it is the cat piss strain, which I have smelled alot of differant strains that have that smell, even when dry. it is not pleasant, and if it tastes like it smells then something is wrong. I am not saying to smoke weed that is amonia, but some realy dank weed has a amonia smell to it. I think when chlorophil breaks down one of the things left is amonia vapor, which is why a ventalated room is good. if it is bad, then the tricomes should be good in which case you would make some bubble hash out of it, and the amonia is gone at that point