I know that there are lots of interesting words for various rhetorical techniques, like: apophasis -- to bring something up by saying that you're not going to mention it.
I need a word for a technique I've seen in comment threads: saying one thing in normal text, and what you're really thiking in strikethrough. Example:
A: Despite some negative reviews, I really liked Halo 2.
B: I thought the graphics were
So? What's the word for this? Surely there's some obscure glossary term we can repurpose to cover it...