Where a group of girls have all been through relationships with fuckboy bellends and decide to no longer be a rug for them to walk on. They form a group where together, they constantly encourage each other to take no shit from insignificant others that are not worth their time. This is done via group chat or weekly lunches.
I wouldn't mess with that sassterhood if I were you...
1. A multiplayer game in which one person yells, "The floor is lava!" and all other players must comply and find higher ground to get to. Anywhere but the floor is safe and if players stay on the floor, then they are painfully burned to death. The floor becomes safe only when the player that called "lava" recalls that the floor has solidified and is safe to walk upon.
2. An utterance that causes absolute havoc when shouted. The equivalent of yelling "Fire" in a crowded theater, but perfectly legal and much more fun.
"When my friend yelled the floor is lava, I jumped on top of him to save myself and he burned to death."
The philosophical thought exercise used by men and women, waiting for a text that states "If you turn your phone off the text is both received and not received untill you turn it back on and see". This thought exercise is exceptionally useful when you are waiting and obsessing over a text.
Person 1 "hey aren't you waiting on a text? Why is your phone off"
Person 2 "schrödinger's text. If I have my phone off I don't know if that hot girl in chem class replied to my dinner invite and as a result I can't worry about not getting a reply."
Person 1 " wow just grow a pair"