thumper

One who or that which thumps.

A thing or a person that is impressive by reason of hugeness or greatness; an unusually big fish, lie, etc.; a whopper.

One who, or that which, thumps.

One who thumps.

A single-cylinder engined motorcycle, especially those having a four-stroke engine or large engine displacement.

A particular drinking game wherein players must remember personal hand signs while being distracted by others’ banging on a table.