Toilet flapper thingy

Oh junk, the toilet flapper thingy won't budge. And this after a major deposit of the Captain's log. :B
Imagine my disgust when all I could do was dive in with a screw driver in hand to immerse the tool beyond the unmentionable you know what to get to the flapper. I managed after a lot of digging and bypassing through yesterdays dinner to move the deal enough for the (unmentionable) to drop through. :S Needless to say, I relinquished the screwdriver of any future doodies, I mean duties, and gave it a proper burial.
Okay, so what do I do? :h Disgustingly yours, in the dumps.