TATTLING
blabbermouthed, leaky, talebearing, tattling
(adjective) prone to communicate confidential information
Source: WordNet® 3.1
Verb
tattling
present participle of tattle
Noun
tattling (plural tattlings)
The speech of one who tattles.
Source: Wiktionary
Tat"tling, a.
Definition: Given to idle talk; apt to tell tales.
– Tat"tling*ly, adv.
TATTLE
Tat"tle, v. i. [imp. & p. p. Tattled; p. pr. & vb. n. Tattling.]
Etym: [Akin to OE. tateren, LG. tateln, D. tateren to stammer, and
perhaps to E. titter.]
1. To prate; to talk idly; to use many words with little meaning; to
chat.
The tattling quality of age, which is always narrative. Dryden.
2. To tell tales; to communicate secrets; to be a talebearer; as, a
tattling girl.
Tat"tle, n.
Definition: Idle talk or chat; trifling talk; prate.
[They] told the tattle of the day. Swift.
Source: Webster’s Unabridged Dictionary 1913 Edition