nippitatum means Strong beer or ale (or occasionally some other alcoholic drink). Lexicurio rates it Rare gem — a strength score of 78 out of 100.
noun
- Strong beer or ale (or occasionally some other alcoholic drink).“Suddenly she wheels around on Boyles. ‘You, flattop – 'ow 'bout a snootful o' nippitatum, eh? Eh?’”