Ad nauseam

[Little_Girl]

From the Latin term, meaning to [nausea]. Used when something has been covered, [explained], or [talked] about to the point of nausea, or to the point where it makes one sick.

[Little_Girl]

Ad Nauseam: 1. Repetitious to the point of wanting to throw up.
2. Going nowhere. Saying something so many times a student will [absolutely not] learn from his or her teacher. Kinda like a [cycle] of abuse, in a merri-go-round [type of way].

[Couch Potatoe]

If someone discusses something ad nauseam, they talk about it so much that it becomes very boring: