It's a Kim Possible reference. After that villain Drakken gets beaten and runs away he always said, "KIM POSSIBLE! YOU THINK YOU'RE ALL THAT, BUT YOU'RE NOT!"
Is Sakura going to be the modest drunk or the loud and rambunctious drunk? I.E:
"Hey ...I'm ready to go home~" Sakura cutely tugs on Kakashi's arm
or
"I JUST WANNA GET FUCKED, RIGHT NO-- MMPH!" - Hand over Sakura's mouth.
"Okay everyone thank you for the invitation but Sakura and I need to go now, bye!" - Kakashi gets OUT with her before its any more awkward.
That's okay. And it's helping your post, because the more you and I post, the closer these funny bits get to becoming reality! :D