Definition of "tattletale"

tattletale

adjective
not comparable
1. telltale; giveaway
noun
plural tattletales
1. One who tattles (reports others' wrongdoings), often a child seeking attention.
2. One who gossips, often for the sake of attention.
verb
third-person singular simple present tattletales, present participle tattletaling, simple past and past participle tattletaled
1. (transitive, intransitive) To act as a tattletale; to tell on; to give away, reveal, or expose.