The new terminology for friends.
"Best friends for Life"
Either used to mock shortened computer lingo as in "omfg we are sooo bffls!" or mistakingly said when referring to a friend, can slip out in coversation by accident like LOLs sometimes do.
Jesse: Why are you hanging out with Karen? I thought you hated that bitch?
Mary: Oh god no we bonded in the ladies room the other day and are totally bffls!
"Omg Stacey and Lindsey are like joined at the hip .. they are like over the top bffls!"
Pajama casual is a term used when working from home and preparing for a video conference. All business above the waist and your pajama pants down below.