To repeat a given statement between two people, expressed in real life using a high or low pitched voice, or on computers by simply adding a "-" prior the statement to be repeated to indicate the repetition.
Eddie: I just biddle bamped!
-Realllllyyyy, That's fuckingg insane!!
Sal: Realllllyyyy, That's fucking insane!!
John: Im going to fix my printer because it got clogged with stickey shit.
Brian: Lol, awesome.
John: - Good fix, good printer, good clogged, good stickey shit.
Brian: Good fix, good printer, good clogged, good stickey shit.
This is a repetition.