Telling someone to "eat a dick" in sensitive situations where profanity is not tolerated.  You take the first letter of each word and translate it using the military alphabet.  Used in radio transmissions, which are monitored, thereby conveying your message without subjecting yourself to discipline.
radio transmission...
Sgt. Brian: "Ofc. Mike did you complete the last assignment I gave you?"
Ofc. Mike: "10-4 Sarge, and that's a big Echo Alpha Delta."
Sgt. Brian: "Ofc. Mike did you complete the last assignment I gave you?"
Ofc. Mike: "10-4 Sarge, and that's a big Echo Alpha Delta."
by MRT310 July 21, 2008
 Get the Echo Alpha Deltamug.
Get the Echo Alpha Deltamug. by Elijah Borg August 21, 2023
 Get the Echo Yankee Zulumug.
Get the Echo Yankee Zulumug. by kennie jak May 11, 2003
 Get the echo 4-19mug.
Get the echo 4-19mug. Fred had the burning desire to call Marge.  He texted her, then seconds later, called her.  As she answered the phone, the text message from Fred arrived. "Is this a 'text echo'?" she asked.
by comas February 19, 2009
 Get the text echomug.
Get the text echomug. The result of feminists and SJW's threathening, shaming, doxxing, and intimidating people into silence to prevent anyone from questioning and examining the ideology of the movement, further spreading false information and ruining people's lives and reputations.
Person 1: "There was no evidence that she was raped. So there no need to continue with the case."
Feminist/SJW: "IF SHE WAS RAPED, THEN SHE WAS RAPED! YOU RAPE APOLOGIST! FIND THIS GUY'S NAME AND BOOST IT! I DON'T CARE IF THERE'S NO EVIDENCE! HE'S A RAPIST!
Person 2: How is doxxing and threathening this guy going to help? You can't intimidate someone that didn't do anything wrong.
Feminist/SJW: RAPE APOLOGIST! TUMBLR IS GOING TO HEAR THIS!
Person 1: *to person 2* The echo chamber effect is in full force. They won't listen to you. They only listen to people that only have the same views as them.
Feminist/SJW: "IF SHE WAS RAPED, THEN SHE WAS RAPED! YOU RAPE APOLOGIST! FIND THIS GUY'S NAME AND BOOST IT! I DON'T CARE IF THERE'S NO EVIDENCE! HE'S A RAPIST!
Person 2: How is doxxing and threathening this guy going to help? You can't intimidate someone that didn't do anything wrong.
Feminist/SJW: RAPE APOLOGIST! TUMBLR IS GOING TO HEAR THIS!
Person 1: *to person 2* The echo chamber effect is in full force. They won't listen to you. They only listen to people that only have the same views as them.
by ThatCanadianGal July 20, 2015
 Get the Echo Chamber Effectmug.
Get the Echo Chamber Effectmug. by Jack Wyatt June 15, 2007
 Get the echo boom generationmug.
Get the echo boom generationmug. by gooberliberation January 30, 2006
 Get the echo bravomug.
Get the echo bravomug.