speak up for

Also found in: Legal.

speak up for (one)

To testify, argue, or give defense on behalf of one. Thank you for speaking up for me back there. I think the boss was ready to fire me! Our organization's goal is to speak up for the disenfranchised groups of the country.
See also: speak, up

speak up for someone or something

to speak in favor of someone or something. If anybody says bad things about me, I hope you speak up for me. I want to speak up for the rights of students.
See also: speak, up