A high pitch noise; ie, screech, shrill, scream. Generally
associated with bestial sounds and eletronic noises, such as oscillating pitch shift, (saw),
animalistic high pitch muling/bugleing, or guttural or fry screaming
most likely an anglicization of swedish word skräll; bang, crash, bray, clap
admittedly it could be from skrillex, and skrill maybe
associated with skrillexs early dubstep sound, both the high pitch whiny saws, oscillations, sub growling and screeching sounds.