When you are trying to sleep, but a very catchy song keeps playing in your head for no reason.
songsomnia: "and I put my hands up like a ceiling fan"
by tst808 June 25, 2013
When you have that song stuck in your head, and it stops you from falling asleep.
"I'm SO sorry I'm late guys, last night, I had a real bad case of Songsomnia - don't look at me, blame my album In The Lonely Hour!"
by music_is_my_religion*•* October 21, 2015