Totally weird, amusing and irritating in equal measure, Thom Browne’s spring show was par for the course. He set up the Edna Barnes Salomon Room of the New York Public Library like a fancy Twenties drawing with lots of nice furniture, an old-fashioned record player and three models: one wearing a sequined mermaid tail, one perched in a lifeguard chair and one in a feathered coat standing in a human-sized bird cage. Then a gray-haired lady waltzed in, petted the models, turned around and hosted a party. The girls entered two by two, exchanging air kisses with their host and each other, again and again. The act went on a little too long. They wore sleeveless jackets and trenches turned inside out so the striped linings showed. The silhouette was long and lean with midlength skirts, a few that flared into stiff mermaid hems. Some of the clothes were quite nice, done in men’s wear fabrics with a flourish of Browne’s sporty red, white and blue. But just as many were silly props. One bustier looked like a 3-D bouquet of yellow flowers with green stems swirled around the bodice — weird, amusing and irritating.