Always great fun to watch well known movies with French subtitles. I believe the above is ” Summer fling, don’t mean a thing.” But translated, “Love vacation is irrelevant” or “unimportant.”
“Quelles nuits” is when John T does his falsetto “niiiiHIGH….T”
And when the gang “shoo-bop-bop”‘s … in French it is ” shoo-bop-bop.” They can totally do that. I seen it at Karaoke night in the village.