She means a metaphorical wall of silence and resentment. Trust me (No word yet on the mental)

"Good news from the White House. President Bush last week had his annual physical and he passed. He passed his annual physical. No word yet on the mental." --David Letterman

"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.”