.I'm Not A Lady.

This would have an even more dramatic effect if you'd use a sticker with the colour of that lipstick instead of the lipstick itself. Instead of smudging, you'd tear it off, as if tear of a part of you you'd want to get rid off, because of something, or somebody maybe, preferably because you want it, not somebody else.

Or, drop something you regret or has been said.