Metameme

An unstated conclusion.

A counterpart to enthymeme: an unstated premise.

My phone's battery is almost dead. I have a meeting in an hour.
The metameme is the unstated conclusion that I should find a charger for my phone.

Sometimes the conclusion is an unpleasant or unflattering conclusion that the speaker doesn't wish to convey directly:
You've lost weight! You look so much better now.
Metameme: you were overweight and unattractive before.