She means a metaphorical wall of silence and resentment (put on a leather mask)

"But not all the generals are against him. He still has the support of a lot of generals: General Electric, General Dynamics, General Motors." --Jay Leno, on generals calling for Donald Rumsfeld's resignation

"Senator Hillary Clinton said she is in favor of building a wall between Mexico and the United States. After hearing this, former President Bill Clinton said, 'She means a metaphorical wall of silence and resentment. Trust me.'" --Conan O'Brien

"Former Secretary of State Madeleine Albright called North Korea's leader Kim Jung Il a pervert. In response, Kim Jung Il said 'I dare her to put on a leather mask and say that to my ass.'" --Conan O'Brien

http://idiocracy23.blogspot.com/2016/06/john-hulse-collected-poems-1985-2015.html “A magisterial collection. An emotional roller coaster. Soon to be a cult classic. A combination of Bukowski’s Last Night On Earth and Orwell’s 1984.”