Sleppver

A between a super tight-knit friend group. Everything is funny suddenly, talking becomes weirdly personal, and tens of new inside jokes are born. What was once simply friendship becomes more like brotherhood following a Sleppver.

Friend 1: "Hey, why have you guys acted so weird recently? And what's with the cereal jokes?"
Friend 2: "We had a Sleppver at Ethan's house"