not know (someone) from a bar of soap(redirected from don't know me from a bar of soap)
Like this video? Subscribe to our free daily email and get a new idiom video every day!
not know (someone) from a bar of soap
To be completely unaware of or know nothing about someone; to have never met the person indicated. My girlfriend got really excited when a movie star apparently walked past us, but I wouldn't know him from a bar of soap. Someone I wouldn't know from a bar of soap just contacted me online, claiming to be a distant relative.
Farlex Dictionary of Idioms. © 2022 Farlex, Inc, all rights reserved.