A person who is a cunt and also has no purpose in life, like a wall.
Dude Laura is such a cunt wall!!!
When a group of male friends block out the advances of random whores at a bar or club. The act shows no interest in said whores, thus generating further interst from whores and a sense of entitlement and insecurity. The end result is male companions using whores for sex with false promises of future contact via phone/email.
Jon and Bob immediately threw up a cunt wall at The Plough In The Stars knowing full well they'd get what they wanted by the end of the night.