Definition of slobgollion in English:

slobgollion

Pronunciation /slɒbˈɡɒljən/

noun

(also slubgullion)
slang, rare US Nautical
  • Fibrous or membranous detritus produced during the extraction of sperm whale oil. Compare "gurry", "slumgullion".

Origin

Mid 19th century; earliest use found in Herman Melville (1819–1891), novelist and poet. Origin uncertain.