Definition of "overdoser"

He has a satisfaction in such achievements, of which the undiscriminating overdoser knows nothing.

1850, Worthington Hooker, Edward Bentley, Physician and Patient

Being yellow in color, beta-carotene may accumulate under the skin to such an extent that the overdoser actually turns yellow.

1990, Eleanor Noss Whitney, Eva May Nunnelley Hamilton, Sharon Rady Rolfes, Understanding Nutrition

...an overdoser, binge drinker, slasher, or sexually impulsive person, is found to act impulsively following some sort of change in a relationship.

1992, Melvin R Lansky, Fathers who Fail