东墙处子

Explanation: Refers to the neighbor's virgin. 　　Source: "Mencius, under the" over the wall and hug his club at the child, then a wife; do not do so is not his wife; will embrace the peace? " 　　Examples: Fourth laugh, Xianglv generation, but who will boast trail and hope to marry hug the east wall at the child. (Ming Sun Ren Ru "Story of East City Mian Ju")