Peg (unit)
A peg is a unit of volume, typically used to measure amounts of liquor in the Indian subcontinent. In India, pegs are traditionally used instead of shots to measure spirits.
The terms "large peg" and "small peg" are equal to and, respectively, with "peg" alone simply referring to a peg.
Bollywood films and songs also reference the patiala peg measuring, or four standard pegs.