A police spy or informer.
An unpleasant person, especially one who makes things difficult for others.
To stop.
To annoy or irritate.
To serve or behave as a spy or informer.
To complain.
To watch; to observe.
One who gossips, often for the sake of attention.
One who tattles (reports others' wrongdoings), often a child seeking attention.
telltale; giveaway
To act as a tattletale; to tell on; to give away, reveal, or expose.