(Baby we both know)
That the nights were mainly made
For saying things that you can’t say tomorrow day
Emboldened by this drinks, he is going to take a chance and admit his feelings to the girl. Something he probably won’t be able to do tomorrow.
It is possible this is also a thinly veiled allusion to the theme of the song From The Ritz To The Rubble on their first album Whatever People Say I Am, That’s What I’m Not where the narrator is dealing with the difference between day and night and what actions, thoughts and (in this situation) conversations are deemed acceptable.
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