Does anyone know what tonightless means?

Question

as in the eighteen visions song

Answer 1

The idea of being "tonightless" comes from the way that people, especially in songs, talk about "tonight" as being something special or the time something will be achieved, this song is saying, we might never have "tonight", we might be "tonightless". The singer's questioning, "Am I gonna be tonightless again?" is expressing his doubts in whatever relationship he's in.