To eat to excess, especially when habitual.(verb-intransitive)
American Heritage(R) Dictionary of the English Language, Fifth Edition. Copyright (c) 2011 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
Use "overeat" in a sentence
"The problem with a. getting up early and b. trying not to overeat is that by 11am one is very hungry, even if one had breakfast."
"If an unmarried mother of her first child is engaged as a wet nurse, she should not be "stuffed" or allowed to overeat, which is commonly the result of moving her from her lower life into more comfortable surroundings, or given ale or beer to increase her milk."
"That the actions that follow on the failure to comply with minimum sleep need are themselves aggressive, whether in relation to others ( 'more likely to sit and seethe in traffic jams, quarrel with other people') or to the self ( 'overeat'), indicates the impasse reached, personally and politically, when the body's and the brain's last bastions of unconscious processing are ignored in favour of the logic of round-the-clock alertness."