bunkó

Etymology
, perhaps from an onomatopoeia +

Adjective

 * 1)  uncivilized, jerk stupid and/or rude, lacking culture

Noun

 * 1) chump, butt, club, knob the larger or thicker end of something, such as a heavy stick
 * 2)  chump, hick, boor, jerk an ill-mannered, rude person, especially a man
 * 3)  insufficient, unsatisfactory, F a failing grade in a class or course