Lyric discussion by pantheist1 

Cover art for Teenage Rebellion lyrics by Gaslight Anthem, The

La petit mort or the little death is an old euphemism for orgasm. So, when he's talking about dying every night in her honor, he means he's fantasized about her to the point of completion and then lingered in a state of limerance about her.

He knows he can't form a relationship with her and imagines that someone else is going to get to her first. Teenage rebellion isn't about rebelling against his parents but against the reality he knows, fate, destiny, God, whatever is in the way of him getting to be with the girl he's in love with.

My Opinion
Positive
Subjective
Love
Longing
Frustration
Desire
Youth
Rebellion
Unrequited Love
Fantasy
Struggle