Thumper Definition
  thumpers
  
    noun
  
 One who thumps.
Wiktionary 
(slang) A single-cylinder engined motorcycle, especially those having a four-stroke engine or large engine displacement.
 Wiktionary 
A particular drinking game wherein players must remember personal hand signs while being distracted by others' banging on a table.
 Wiktionary 
Other Word Forms of Thumper
Noun
Singular:
 thumperPlural:
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