When friends talk whilst jumping aimlessly into a videogame or several without playing for very long time.
Friend 1: "What do you want to play?"
Friend 2: "Idk I was just thinking of sclupping around tonight. I can't choose over the sound of my life screaming for meaning."
Friend 3: "Yeah, same... what about *Insert game rapidly declining in popularity*"
A really large scoop of something. Typically used in prisons.
The prison chef just gave me a sclup of slop. It was a great amount.