Your locksmiths correction makes sense. He does say Technicolored in the past-tense.

The David one has me a bit stumped. I thought at first it may be "David's because Behan may have been referring to the story of David, Bathsheba, and Uriah (in 2nd Samuel, 11), juxtaposing David's easy-going and lavish lifestyle as composed to Uriah's military service, but there's no Biblical evidence Uriah hated David or even knew what had happened. I think that element still makes some sense, but then I also came upon references to David Copperfield; I haven't ready the book, but evidently Uriah did hate David for his trustworthiness. Definitely sounds like shade though.

I hear weightlifting, too. Maybe it's a comment about men bulking up and getting muscular to woo women, and a comment on it not being a deeper, "true" love but a physical one (ie, not long-lasting)?