on the grog en · ADP
Etymology
From on (“regularly taking”) + the + slang grog (“any alcoholic drink”).
Meanings
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(Australia, slang) Drinking alcoholic beverages to excess.
After a fine night on the grog, with bladder pressures reaching an estimated 4,000,000 psi (estimated by drunken scientists), the comparatively short range marksmanship required of an in-sink micturator is a significantly more approachable challenge than the tricky long yellow of the traditional method.
2007, Amanda Astill, Tom Bromley, Michael Moran, Simon Trewin, Shopping While Drunk: Confessions from Modern Life, London: John Murray, →ISBN, page 157: