Thumper

{
  "id": "MLC-T-IND-007310",
  "term": "Thumper",
  "field": "Industrial and trades",
  "definition": "A single-cylinder four-stroke engine, or a motorcycle powered by one, named for the slow, heavy beat of its exhaust. Large single-cylinder engines of this kind power many off-road and dual-sport motorcycles. The word is also used for a truck-mounted source that thumps the ground to send seismic waves into rock during geophysical surveys.",
  "subject": "Shop talk and trade slang",
  "translations": {
    "de": "Thumper",
    "es": "thumper",
    "fr": "thumper"
  },
  "url": "https://mlchart.com/terminology/industrial/thumper/"
}