To strike with a clenched fist.

What think ye? They answered and said, He is guilty of death. Then did they spit in his face, and BUFFETED him; and others smote him with the palms of their hands, saying, Prophesy unto us, thou Christ, Who is he that smote thee? ( Matthew 26:66-68 )

Dictionary of Words from the King James Bible. Public Domain. Copy freely.