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1.
After Grog Bog is the shit you do after a night of drinking alcohol
Angelina: I wouldn't go in there if i were you
Brad: Why's that?
Angelina: I have the worst After Grog Bog
Brad: Right, I'll give it at least half an hour
by Little Kitten January 13, 2006
 
2.
An Austrailian term for taking a big dump after a night of drinking.
Oi, hey mom, yeah college is great, I'm just having me after grog bog... how's grandma?
by Wiley H. November 05, 2011