A "plaqueaso" literally means sign or "plaque," it is the term, along with "placa" that refers to the style and arrangement of cholo (Latino gangster) writing that can be seen on walls and carved into sidewalk cement, dominantly in Los Angeles where this style of writing evolved starting in the early part of the 1900s.
Those Rockwoods threw up a dope plaqueaso down the block!
by Mr. Flashback October 12, 2011
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