EC (turns off the)

From aa-asterisk.org.uk wiki

Turning off the Echo cancellation is a standing joke when two or more people say the same thing at exactly the same time.

Example

[08:24:36] <BUTT> morn gr0mit
[08:24:36] <GaryH> morn gr0mit
[08:24:45] GaryH turns off the EC
[08:24:59] <BUTT> hehehehe