To annoy or irritate.
To stop.
To serve or behave as a spy or informer.
To complain.
To watch; to observe.
An unpleasant person, especially one who makes things difficult for others.
A police spy or informer.
To annoy, irritate.
To toss back and forth; to agitate; to disquiet.
To twist, to weave.
To cause (mental) suffering to; to distress.