Top Definition
All visual elements in charts and graphs that are not necessary to comprehend the information represented on the graph, or that distract the viewer from this information.

Coined by Edward Tufte, PhD
Professor Emeritus of Political Science, Statistics, and Computer Science at Yale University;
Member, Recovery Independent Advisory Panel for President Barack Obama
(1) USA Today had a graph with so much chartjunk all over it I couldn't even tell what the point was.

(2) His PowerPoint had so much clipart ! All that chartchunk hid so much of the real info that I was able to fall asleep for the whole talk.
by ksmanning March 25, 2010

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