carry-no-key

1. To get on stage at karaoke and not sing. 2. To sing out of tune at karaoke. 3. Someone who gets on stage and karaoke and doesn't sing. 4. Someone who gets on stage and karaoke and sings out of tune.

"I can't even hear her. I thought you said karaoke, not carry-no-key." "The way this carry-no-key sings it, I can't even tell what song it is."