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A derogatory term for a Christian considered to be overly focused on the Bible and/or aggressively evangelistic. Primarily heard in US. After Mary started spending more time with her church's youth group, her friends from school began to complain that she had become a bit of a Bible-thumper

thump on (someone or something)

To beat or pound on someone or something with force. The two brothers thump on each other all the time, but they're really very close. The manager thumped on the table to bring some order to the meeting.
See also: on, thump
References in periodicals archive ?
Thumper likes to drink out of the bath and has fallen in a few times.
The noise was enough to stop anyone in their tracks, too - hence the name Thumper, coined by our neighbour George, who watched endless hours of his spectacular performances.
Christine said that whoever took Thumper went to great lengths, and must have known how precious that rabbit was because they did not attempt to take anything else.
Watch Thumper closely for a few days to see where this spot is and put a litter tray there.
Male model Tim Haddock went close to a consolation with a 20-yard thumper, which was well saved, but Vale wrapped up their win with two goals at the death.
Noddy's tinsel thumper will be out on December 4, the same day as their 'best of' album.
Thumper, the wild deer saved from the Leeds/Liverpool Canal, in Leeds city centre, is cared for at the Whitehall Dog Rescue Home, near Wakefield
In October 2003, Peter pocketed a cheque for 31,000gns for his 16-month-old prize bull Pedr Thumper at the society's sale in Perth.
Even hard-nosed, hard-hatted building workers have come to fear the Thumper approach of Floppy.
A great day's trading topped at 31,000gns at the British Limousin Cattle Society's Spring Show and Sale at Borderway Mart, Carlisle, on Saturday for the junior bull Wilodge Thumper offered by the partnership of Christine Williams and Richard Bartle.
Old Thumper was first brewed in the late '70s at the Ringwood Brewery, one of Great Britain's pioneering micros.
Thumper Corbyn reels from her first punch, hits the canvas, and picks himself up.
RALPH the bumper thumper has reclaimed his title as the world's biggest bunny.
The day we found Thumper the rabbit stiff in her hutch is still tearfully recalled by the eight-year-old.
Instead, Thumper took first place, while Joey was the most popular name for budgies.