English idioms relating to communication-contacts-information.

Idiom	Meaning
Blow out of proportion	If you exaggerate the importance of something, you blow it out of proportion. "The importance of the event was blown out of proportion by the media."
Chinese whispers	This term refers to a process by which a message or piece of information (especially gossip, rumours or scandalous news) is passed on from one person to another, and changes along the way, so that the final version is often very different from the original.
Drop somebody a line	If you drop someone a line, you write a letter to them. "I always drop her a line to wish her a Merry Christmas."
Get/give the low down	If you get or give the low-down, you get or give complete information or facts about something. "I'll call you after the meeting and give you the low-down."
Hear through the grapevine	If you hear of something through the grapevine, you learn about it informally, for example through friends, colleagues or acquaintances. "How did you hear that? Oh, through the grapevine as usual!"
Hit the airwaves	When someone hits the airwaves, they go on radio and/or TV to be interviewed or to promote something. "The hospital was embarrassed when the patient hit the airways with his side of the story."
Hot off the press	If a news article, for example, is hot off the press, it has just been published and contains the most recent information on the subject. "I just got it hot off the press; another bank has gone bankrupt!"
Keep someone posted	If a person asks you to keep them posted, they want you to keep them informed about a situation "Our agent promised to keep us posted on developments in the negotiations."
Megaphone diplomacy	If the media, through press releases, interviews and announcements, is instrumental in facilitating dialogue between two or more countries, this is referred to as megaphone diplomacy.
Out of touch	If you are out of touch, you no longer communicate with someone, or you are unaware of the developments relating to something. "I've been out of touch with Jenny since we left college."
Come/get to the point	If you come or get to the point, you reach or focus on the essential part or the heart of the matter. "We don't need a long explanation Barry. Just get to the point."
Put someone in the picture	If you give somebody all the information necessary to enable them to fully understand a situation, you put them in the picture. "Let me put you in the picture about what happened during your absence."
Speed networking	This refers to a relatively new urban trend which consists in making a potential business contact by briefly talking to a series of people at an organised event and exchanging contact details.
Spread like wildfire	If something such as news, rumours or gossip spreads like wildfire, it becomes widely known very fast. "As soon as the nomination was announced, the news spread like wildfire.
Stool pigeon	A person who acts as an informer, especially one who gives information to the police or the authorities, is called a stool pigeon. "I don't trust Jack, I think he's a stool pigeon for the manager."
On the stump	Before an election, when politicians are campaigning for support and votes, they are on the stump. "On the stump for months, the candidates attended meeting after meeting."
Take the floor	When someone takes the floor, they rise to make a speech or presentation. "When I take the floor, my speech will be short." he said.
Throw it over the wall	If someone throws something over the wall, they deal with part of a problem or project, then pass responsibility to another person or department without any communication or coordination. "You can't just manufacture a product and then throw it over the wall to the sales department."
Touch base	If you touch base with someone, you make contact or renew communication with them. "I'll try to touch base with you next week in London.
Word of mouth	Information passed on through conversation is transmitted by word of mouth "No announcement was necessary - the news had already spread by word of mouth."