The lyrics of the song Gentle Spike Resort by Grandaddy refer to Sid Viscosity:
With ex-school treasures for hire
And whitesnake riffs dressed up like Sid Viscosity
"Whitesnake" could refer to Deep Purple's David Coverdale's band Whitesnake, in which case I assume the sound of 'Sid Viscosity' is close to but idiosyncratic enough to differentiate it from Whitesnake's, but "Sid Viscosity" doesn't give me any reasonable hits inside or outside that musical context.
Who - or what - is Sid Viscosity?