There must be something about the air in Colorado that makes so many of its bands such insufferable goofballs. Flobots, OneRepublic, String Cheese Incident — their names say it all. But none of these groups is as awful as 3OH!3, the electro-pop duo that scored a hit last year with the grating “Don’t Trust Me.” Their third album is filled with the same party-all-the-time self-indulgence that made them MTV stars. They haven’t grown up much, and they certainly haven’t gotten any better since their breakthrough. Streets of Gold begins with a loud, brash fart of synthesizer squalls that eventually gives way to white-boy rhymes about STDs, drugs, booze, and borderline sexual assaults — all of which they should have left back at the frat house. Only “My First Kiss,” with a typically stumbling Ke$ha chorus, offers any kind of spark. Hangovers are way more fun.