To attack with blows; hit, beat, or whip. See Synonyms at beat. (verb-transitive)
To assail verbally. (verb-transitive)
To discuss repeatedly or at length; harp on: Don't belabor the point. (verb-transitive)
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 "belabor" in a sentence
"He tends to find a point in his case (and in both books, the point he chooses to belabor is ridiculous and would not BE a point in a real case of law) and go over and over and over that point ad nauseum until you want to scream."
"To belabor the obvious, La Jornada is a leftist newspaper."
"Not to belabor the topic, but there is an important distinction between being what is called a "foreign resident" for tax purposes and a resident with regards to your immigration status."