Meaning: When you dunno the words of a song and are forced to hum the tune. Or vice versa.
Usage: Karaoke is the best thing to have happened for people with humnesia.
Pronunciation: Hum-nee-shia.
Root: Hum + Amnesia.
Joint Credit: I was inspired to coin this word after seeing Arun Kedarinath's coinage Hummunication.
