Idioms and Phrases with spar with
Argue or debate with, as in You'd never know they were happily married, because they're constantly sparring with each other. [Early 1600s]
The American Heritage® Idioms Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.