Not showing up to some place, when you said you are going to.
Blaine: "Hey, you coming over to chill?"
Stephanie: "Yah, I'm on my way"
~6 hours later~
Stephanie knocks on window of Blaine's house
Blaine: "Hey girl, I thought you were flossing"
Stephanie: "Deeeude!! I'm deff. not a flosser!!!"