So, you know when someone says something mean to you, and you might, say... get really p*ssed off at them... it's always great to have some smart-ass comments to throw back at them.
E.g- someone is getting on your nerves, and (like my friend Katy did) you threaten to stab a pencil, through their frontal lobe. That, is always fun! But make sure that you don't always use the same one.
Or, someone keeps on asking you really STUPID questions, you could always reference 'Sherlock bloody Holmes' (XD) and say "Stop talking before you lower the IQ of the entire *' (*= insert wherever you are here. XP)
Or, you insult someone using a reference to something you like, but they might not understand it as an insult. Then they end up confused, and that is ALWAYS fun!!
Like:"Not even a Dementor would kiss you!" Or:"Not even Envy would shape-shit into you!" (Geez... you have no idea how long it took me to think of that one, lol. X3)
Or: (and this, only really works for Males) "Kiss my sweaty balls, you fat f*ck!" (Peter Capaldi-The Loop, I believe?)
This one time, Max in my school, thought he could insult me, by saying I was Hermione Granger... wow, epic fail...
He basically called me, someone that a lot of guys fancy, and a witch... meaning that I can use magic... meaning that I am better than him!!!!!
I understand his logic... NOT!!!!!

Thanks for reading!!
See ya!
~Jeanae