I tend to say, "SHUT. UP." a lot.
I use, "like" multiple times in every sentence.
Multiple variations of curse words.
"Buttsex!" (randomly during a convo.)
"hacking"
"freaking"
"Oh my goodness!"
"Oh dear."
"You suck."
"loser"
"Just shut the **** up. Nobody cares."
And other stuff. xD