What is a scrumple unit? (pressure)

[sdmiller23]

what is a "scrumple" unit? (pressure)

"what size of circular pipe is needed to produce a flowrate of 250 firkins per fortnight when there is a pressure drop of 3x10^5 scrumples per square barleycorn? the pipe is horizontal."

I couldn't find what a scrumple was on google, does anyone know? (barleycorn = length, fortnight = time, firkin = mass)

 

[SteamKing]

I think 'scrumple' is a typo which should read 'scruple'. One scruple is 1/24 of an apothecary's ounce.