Example:
megan and patrick are texting~~~~~~~~~
patrick: hey whats up?
megan: nm. u?
patrick: same here. remember when kyle went to kiss you but you turned away and he fell and broke his arm?
megan: i felt so bad!!
patrick: it was funny though.
{megan has nothing to say}
{four minutes later}
patrick: it was funny though.
{megan has nothing to say}
{seven minutes later}
patrick: it was funny though.
megan: quit the say say again. i heard you the first time.

Example:
Hym "Say that again? Which thing? I hate repeating myself but you know I'll say it again right? Yeah... You know... You guys seem to forget that you've been talking about the type of guy that I am for my entire life. You realize that right? Was I not on your radar? And now you're mad that I've had my say? That's all it will ever. 'I deserve this more than the people who don't have it.' The 'haves' and the 'have nots' perpetually. Egh, I'm getting communist-y. You act like you're not doing anything to me. 'You can make me do a thing I don't want to do!' I'm not making anyone do anything and the thing I want to be done is 'acknowledge my existence'. Which makes what you're doing 'Shunning.' You're shunning me and trying to reframe it as me trying to make you do something you don't have to do. I'm being shunned. Ridiculous. It's ridiculous. That is you actively doing a thing to me. You're shunning."

Example:
Me: Say what Again muthafucka

You: What?{gun Shots}

Example:
"We gotta crack Gretchen Wieners. We crack Gretchen, and then we crack the lock on Regina's whole dirty history." -Janis
"Say crack again."-Damien
"Crack."-Janis

Example:
Dumbass: "The Flat Earth Society has members all around the globe!"

Normal Person: "Say that again, but slowly..."

Example:
Person 1“OH MY GOD ITS THAT GUY SAY “WHAT” AGAIN EWWWW”

Person 2 “IKR WHAT A FUCKING LOSER LIKE LOL”

Example:
Ex: (Mom yelling at us to be quick)

Sister: "Mom is soooooo IRRITATING!"

Me: "You can say that again" (showing that you agree with your sister (do you?))

Example:
"Say again all last, did not copy.", "I didn't hear that, say again?"

Example:
For instance on Facebook you may have:
Person A: "You should never blame a whole group of people for the actions of a few people within that group!"
Person B: Say It Again Louder For The People In The Back.