A religious Zealot who pressures people to subscribe to their own religios beliefs, even after the target has said they are not interested. Mormons and Jehovah's Witnesses are particularly notorious Bible Thumpers.
a bro: "Hey,there are some Mormon Missionaries at the door to talk to you!"

me: "Damn, I told those Bible Thumper Mormons to go away, where is my Pepper Spray at?"
by Piranha March 24, 2008
An individual who justifies his/her actions by quoting Bible passages. They often reject scientific evidence, pass judgement on others, and have a know-it-all attitude. Most have lost the ability to think critically.
As our Biology teacher showed us pictures of Lucy, a fairly well-preserved Australeopithicus fossil and tried to explain how she had characteristics of both extinct primates and some current primates such as apes, chimpanzees, and humans, some Bible thumper in the back of the room yelled out "We din't come from no monkeys!"
by toolguru October 25, 2007
one who has extramarrietal relations with their Bible...and for those of you who dont understand that...fucks their Bible
George Bush is a Bible Thumper
by GC Ender January 13, 2005
(So called because some evangelists literally thump their Bibles to emphasize important parts of a sermon.)

A person whose religious beliefs include strict adherence to the Bible. He is likely to deliver angry sermons to anyone who believes differently, even if that "difference" means belonging to a church that disagrees with his interpretation of Scriptures.
DeeDee's co-workers called her a Bible-thumper after she tacked gospel tracts onto the office bulletin board.
by Ingeborg S. Nordén May 15, 2006
Some ass clown who tries to convert people to his version of Christianity, using a book he's too ignorant and incompetent to fully comprehend. Fully ignorant of the historical, cultural and literary context of the Bible. Every Bible thumper gives the South a bad name. We're not all like that down here, promise y'all that.
The Bible thumper told me I was going to Hell, so I gave him my rosary and told him to pray for me.
by zomgwhat August 06, 2008
a) Self-righteous, irksome, delusional person who is infused with religous vanity and is prone to annoy others with their judgmental attitude.
b) person who is convinced he/she is going to heaven, despite the fact that he/she sucks to no end.
c) poor selection for a lover or roommate.
If I hear any more sermons from that friggin' biblethumper, I'm going to kick his self-righteous, unemployed ass right out of my apartment.
by no-one of consequence November 12, 2003
A person who generally adheres strictly to the Bible, Scripture, or New Testament. Usually found in Southern states, North Carolina, Florida, Texas, Louisiana, etc., etc.... Bible-Thumpers usually allow themselves to be seen as "God-fearing" Christians, but once they're behind closed doors will talk trash about everyone in their neighborhood. They usually try to shove their beliefs down everyones' throats and hate people who are different (Gays, Jews, Wiccans, etc., etc...).

"Hey, I'm going over to Sally's today."
"Oh? I hear her parents are Bible-Thumpers."
"Really? That explains a lot..."
"Watch out. The minute they start preaching about how you're always committing a sin, and that if you don't get saved soon you'll burn in hell, get the fuck out of there."
"Will do, will do."
by IMissTheSilence November 02, 2009
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