Generally speaking, a big boy drink is an alcoholic beverage that is served in a rather large cup (like, say a big gulp cup) and is usually mixed with hard alcohol and a soft drink.
Bryan wanted to fix himself a big boy drink before last night's Halo session, but, unfortunately, he was out of Mountain Dew.
by yo_antnee1 September 29, 2011
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A girl called Beth who is not a boy and is mentally not stable but is very talented and very swagy :)
Max: “BiG bOy BeTh Is back I didn’t even realise that is incredible.”
by Bigboybeth June 4, 2020
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used to describe a buisness deal or a generally grown up event
yes blud im out tonight taking care of buisness , big boy tings u get me?
by g1019 January 1, 2009
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The season when only a big boi (fat niggas ) will have the chance to bag any female he wants.

November 1 to February 20.
Its Big Boi Season fellas, find you a biddie

If your man under 200 lbs. than wyd??
by Darkskin Werido January 4, 2018
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When someone offers to help you but you want to act harder than them so decline

Often used ironically
Me: Just downed half a bottle of vodka, gonna be hard to finish the rest
Them: I can help you finish it if you like
Me: Na this is big boy shit mate.....but cheers
by SarcasticSilas September 16, 2018
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