take (one's) name in vain

take (one's) name in vain

To speak about someone when they are not present, as in a critical manner. The phrase comes from one of the Ten Commandments, which prohibits taking God's name in vain. Hey, I heard that! Don't take my name in vain!

See also: name, take, vain

take somebody’s name in ˈvain

show a lack of respect when using somebody’s name: I get very upset when people take God’s name in vain. ♢ (humorous) Have you been taking my name in vain again?This expression comes from the Bible.

See also: name, take, vain