My cat has a specific meow for almost everything.
dinnertime: "wrehhh wrehhh" (while tail-twitching and running in circles)
bored, or greeting at door "meh-wrer?"
being pet or picked up when she doesn't want to be (protesting, but not fighting it): "mreww" (in a tiny, soft voice that trails off.
jumping or other exertion: "brrt"
being bathed (she hates it, but loves the way she feels afterwards. gets extra-lovey after she realizes that her fur will dry): "wrooooooow"