N-UNCOUNT-COLL [with singular or plural verb](在公共场所的)涂画,涂鸦Graffiti is words or pictures that are written or drawn in public places, for example on walls or posters. (在公共场所的)涂画,涂鸦
Buildings old and new are thickly covered with graffiti.
新老建筑上都有密密麻麻的涂鸦。
There's no vandalism, no graffiti, no rubbish left lying about.