A slang term for the food served at a pub or bar. Usually it is fast food, grilled or deep fried. Sometimes it is even a frozen pizza cooked in a toaster oven. Salty popcorn is often offered as free pub grub (to encourage drinking.)
Many drinking establishments serve pub grub and some actually have some really good food!
by luckyblackcat13 December 7, 2013
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Extremely low grade cocaine, typically bought in the toilets of a manky boozer. As likely to engender feelings of paranoia and a horrible empty craving for more than any actual enjoyable buzz.
I tried to get some decent gack, but all I could get hold of was Jim's shit pub grub.
by WakaFlockaLame October 17, 2014
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