A foolish, annoying, or socially inept person.
A person variously regarded as ineffectual, foolish, disagreeable, contemptible, etc.
The definition of a yutz is Yiddish for someone who is believed to be foolish or useless.
An example of a yutz is a child that is not very good at doing his chores.
Origin of yutz
Possibly alteration of putz (perhaps influenced by Yiddish yold fool) (yat fellow, guy) (or yentsen to have sexual intercourse)