Down the old Gregory comes from the cockney rhyming slang, 'Gregory Peck', meaning neck. So down the 'old Gregory' simply means down your neck. It's most commonly used when referring to drinks.
by sambo28 December 6, 2016

Just a complete moron
There are different sense of the word but generally it's related to people trying to pretend they're cool.
There are different sense of the word but generally it's related to people trying to pretend they're cool.
by sambo28 June 26, 2017

The act of drinking a beverage (normally alcoholic) with extreme enthusiasm, most commonly used on Friday afternoons.
by sambo28 May 15, 2016
