thumper

== English == === Etymology === From thump +‎ -er. === Pronunciation === (Received Pronunciation) IPA(key): /ˈθʌmpə/ (General American) IPA(key): /ˈθʌmpɚ/ Rhymes: -ʌmpə(ɹ) === Noun === thumper (countable and uncountable, plural thumpers) One who thumps. (slang) A single-cylinder engine, especially four-stroke engines or those with large engine displacements. (uncountable) A drinking game wherein players must remember personal hand signs while being distracted by others banging on a table. (slang) Something big, such as a lie; a whopper. (UK, rail transport, slang) A kind of slam-door train introduced in the late 1950s. (US, military, slang) The Vietnam-era M79 grenade launcher (due to its distinctive report). (Antarctica) A short rope for beating disobedient sled dogs. (informal) A strong adherent to a religion or ideology. ==== Derived terms ====