Old Peg; poor hard Suffolk or Yorkshire cheese. A peg is also a blow with a straightarm: a term used by the professors of gymnastic arts. A peg in the day-light, the victualling office, or the haltering-place; a blow in the eye, stomach, or under the ear.
PEG
Meaning of PEG in English
Slang English vocab. Английский сленговый словарь. 2012