Charlie's mother shouted at him, "Stop jumping up and down on your bed and acting like a little imp, and try to be just a little serious and clean up your room."
Famous or well known, typically for some bad quality or deed
(especially of a person) unfortunate
Very unlikely to be true, and difficult to believe
Having no purpose, and is not worth doing
ADJECTIVE
Pointless - Having no purpose, and is not worth doing
Though Bill's parents wanted him to be a doctor, he didn't find it interesting, and hated the sight of blood, so he thought it was pointless to apply to medical school.
In his rookie debut, Omar seemed inept because he struck out every time he was at bat for his first 4 games, but then he improved, much to his and his team's relief.