It's not "uh oh" if you throw it on the floor
Emma has learned to say "uh oh", sometimes at random, but occasionally she'll get the timing right, and say it when something falls over, etc.
However, her latest trick comes during dinner time. She likes to pick up a handful of whatever she's eating, throw it on the floor, then look at us and say "uh oh!"
So, we find ourselves saying "it's not uh oh if you throw it" to her quite a lot these days.