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v. o·ver·did (-dĭd′), o·ver·done (-dŭn′), o·ver·do·ing, o·ver·does (-dŭz′)
a. To do, use, or stress to excess; carry (something) too far: overdid the diet and became malnourished.
b. To exaggerate: overdid the compliments.
2. To wear out the strength of; overtax.
3. To cook (food) too long.
To do too much; go to extremes: We always overdo at Christmas.

o′ver·do′er n.
American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.


someone who does something to excess
Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014
References in periodicals archive ?
Similarly, subgroups of "overdoers" have been identified.
Two hundred and eighty-nine patients (49%) were classified as avoiders by the POAM-P/F, 160 (27%) as pacers, and 129 (22%) as overdoers, and 17 (3%) could not be classified (identical scores in the two best-scored subscales).
Whereas the TSK is specifically designed to detect avoiders, the POAM-P aims at classifying patients into three categories: avoiders, pacers, and overdoers. At the moment, there is considerable debate on the classification of behavior patterns and on their implications in the management of patients [14,17,18,28].