Deaf as a door and Deaf as a doorknob

Deaf as a doorknob and deaf as a door are semantically related. In some cases you can replace phrase "Deaf as a doorknob" with "Deaf as a door", this phrases are similar.

Deaf as a door and deaf as a doorknob are semantically related. Sometimes you can replace phrase "Deaf as a door" with "Deaf as a doorknob", this phrases are similar.