I gargled with Listeria mouth wash erry night.....
Wait. Mrs. Glitch says that it is Listerine mouth wash that we use. Apparently that is entirely different and my lawyer says that I should specifically discourage anyone from using Listeria or Listeria based products in any way, including but not limited to mouth wash.
There is a whole generation that would pay you a pretty penny for that bottle if full or even partway full. Doesn't matter if expired, just ask Jordan Belfort (Wolf of Wall Street).