tell tales

Related to tell tales: tell tales out of school

tell tales

To share secrets, often knowing that doing so will cause problems for someone else. Here's a tip: don't tell tales about your co-workers if you want to have any friends here.
See also: tales, tell
Farlex Dictionary of Idioms.

tell tales

Divulge secrets, as in Don't trust him; he's apt to tell tales. This expression was first recorded about 1350. A variant, tell tales out of school, first recorded in 1530, presumably alluded to schoolchildren gossiping but was soon broadened to revealing secret or private information. Both may be obsolescent.
See also: tales, tell
The American Heritage® Dictionary of Idioms by Christine Ammer.

tell tales

If someone tells tales, they tell someone in authority about something bad or wrong that someone else has done. She had no right to tell tales to his mother! They try to get convicted criminals to tell tales on their mates in return for cuts in their own sentences. Note: This expression is used to show disapproval.
See also: tales, tell
Collins COBUILD Idioms Dictionary, 3rd ed.

tell tales (out of school)

gossip about or reveal another person's secrets, wrong-doings, or faults.
As telling tales to school authorities is a terrible offence in the eyes of schoolchildren, this expression is often used in the context of declining to supply information or gossip.
1991 Mark Tully No Full Stops in India Indira trusted me throughout her life, and just because she's dead it's not right that I should break that trust and tell tales about her.
See also: tales, tell
Farlex Partner Idioms Dictionary

tell ˈtales (about somebody/something)

(British English) tell somebody, especially somebody in authority, that another person has done something wrong: How did the boss know that I was late for work this morning? I think somebody’s been telling tales about me.
See also: tales, tell
Farlex Partner Idioms Dictionary
See also:
  • tell tales out of school
  • tell tales out of school, to
  • don't tell tales out of school
  • never tell tales out of school
  • school
  • feud
  • feud about (someone or something)
  • feud with (someone)
  • feud with (someone) over (someone or something)
  • feud over (someone or something)
References in periodicals archive
Tell Tale Hearts, together with London Talents, will be heading to India in February.
* GOING GLOBAL: Tell Tale Hearts are off to India with a children's show first seen at the LBT
"Not too many of us tell tales out of school, that surprised me," said Thorpe.
* Don't tell tales. Be tactful in your conversation with your peers.
Storytellers and musicians from as far away as Africa visited to tell tales of grand processions.