What does "thunder" mean here?
Native speaker’s answer
Rebecca
Within the context of the song, I'd say "thunder" means "drama" or "something different" - a form of change. She's saying he wanted "thunder", something to shake and change his world and life, and with her in his life, he has it, whether it's what he expected or not. Ex: When I said I wanted a change in my life, I didn't mean moving countries! I just wanted to dye my hair. Ex: She brings a lot of thunder into his ordinary life.