chump

1. An incompetent person, a blockhead; a loser. (colloquial) · That chump wouldn't know his ass from a hole in the ground.
2. A gullible person; a sucker; someone easily taken advantage of; someone lacking common sense. (colloquial) · It shouldn't be hard to put one over on that chump.
3. The thick end, especially of a piece of wood or of a joint of meat.

الجمع chumps