be forsworn(redirected from am forsworn)
To lie under oath, as of a witness in legal proceedings. If you're forsworn, they'll surely have you arrested.
Farlex Dictionary of Idioms. © 2015 Farlex, Inc, all rights reserved.
To commit perjury.
American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.