Bible thumper (also Bible beater, Bible basher, Bible humper) is a term used to describe Christian fundamentalists, or anyone perceived as aggressively pushing their Christian beliefs upon those who do not share them. Its target domain is broad and can often extend to anyone engaged in a public show of religion, fundamentalist or not.

The term alludes to a preacher thumping his hand hard down on the Bible on it to emphasize a point during a sermon.

See also

• Anti-Christian discrimination
• Fundie
• Holy roller
• Jesus freak