Ad nauseam is defined as something that happens over and over, or that goes on for so long that everyone is sick of it.
An example of ad nauseam is the story that your professor repeats at the beginning of every single class.
to the point of disgust; to a sickening extreme
Origin of ad nauseamL, to nausea
To a disgusting or ridiculous degree; to the point of nausea.
Origin of ad nauseamLatin ad, to + nauseam, accusative of nausea, sickness.
- to a nauseating or sickening degree.