Hedi Slimane batted back against Cathy Horyn on Twitter once again Wednesday night, responding to her comment that his reaction to her critique of Saint Laurent's Spring 2013 show was "silly nonsense."

"The perfect integrity of The NewYork Times, and its writers, is not precisely 'just silly nonsense,'" Slimane tweeted. He continued, "What is a 'silly nonsense' to me is Catty [sic] Horyn still singing her tired bias tune for the nyt. This is an embarrassment for the newspaper."

The volleys started Monday, when Horyn wrote a post about Slimane's debut show for Saint Laurent (to which she wasn't invited), calling it "a nice but frozen vision of a bohemian chick at the Chateau Marmont. . . . Mr. Slimane's clothes lacked a new fashion spirit."

Slimane responded with an open letter Tuesday, calling Horyn "a schoolyard bully and also a little bit of a stand-up comedian." The letter continued to say that she would never be invited to a Saint Laurent show. Horyn told WWD on Wednesday that the war of words was "just silly nonsense to me."

Photo courtesy of Yves Saint Laurent.