The person who, in the lead up to some social event, everyone gives their money to so that they may purchase their alcohol, even thought they only offered their service to about two people. That person is then burdened with bringing copious amounts of grog to said event.

Particularly applicable to the one friend in a group of under-age people who has an older sibling or friend and therefore easy access to alcohol.

See also, Beer Sherpa
Well Ori's my grog bunny so I just gave him $20
by Walrus93 June 5, 2010
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Basically a period but in a more kid friendly way.
What they use to make Raspberry Zingers and Mom's Spaghetti.
Girl: Ouch waaaaah Dad I just got my monthly grog.
Dad: Ok let me throw junk food at you for a TikTok.
Girl: I fucking hate you dad.
by thetahaarysn June 3, 2021
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A person who is obsessed with alcoholic beverages and craves the feeling of being drunk.
“I once saw a sexy little readhead, I asked for his name. He responded chrissy. I was keen on a root until I seen he was a grog monster
by 111-… March 4, 2022
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A sly grog shop (or shanty) is an Australian term for an unlicensed hotel or liquor-store, often with the added suggestion of selling poor-quality liquor; a place where alcoholic beverages are sold by an unlicensed vendor.
Yesterday they had a few in the sly "grog-shop" as they usually do.
by Old Nick March 6, 2014
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1. The worst type of shit possible.
2. An extremely repulsive female.
1. "Oh man, I jus' busted a grog bog in there, I wouldn't go in for 35-45 minutes."
2. "Tom hooked up with a mad-ass grog bog last night.
by Diego September 20, 2003
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Yeah, well..they're just a Grog Dog who'll charm you, move in, guzzle all your booze & food then leave their crap all around your house
by Sunnyspot January 13, 2017
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A over-reactive beverage used to luberacte the ass hole.
by Paul C April 23, 2003
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