Idioms and Phrases with swear at
Curse, use abusive, violent, or blasphemous language against, as in He has a way of swearing at all the other drivers on the road. [Late 1600s]
The American Heritage® Idioms Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.