Definition of "thumper" [thump•er]

• One who thumps. (noun)
• A single-cylinder engined motorcycle, especially those having a four-stroke engine or large engine displacement. (noun)
• A particular drinking game wherein players must remember personal hand signs while being distracted by others' banging on a table. (noun)

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• "But, if a bible-thumper is going to get ticked off about Pullman's attitudes and storytelling, this is the book they'd find the best ammunition."
• "Hot-gospeller and Bible-thumper is the language he uses."
• "Test hardware was a Sun X4500 (aka thumper) with 48 x 500GB disks."