(in China) a bulletin or political message painted in large characters on walls
wallposter in American English
(ˈwɔlˌpoustər)
noun
(in China)
a usually lengthy notice, complaint, personal opinion, etc., handwritten in large characters and hung on walls in cities, as a means of communication and for criticizing or attacking government policy or politicians
Word origin
[1965–70; wall + poster1]This word is first recorded in the period 1965–70. Other words that entered Englishat around the same time include: genetic engineering, isometric exercise, no-fault, overdub, wraparound