The phenomenon when you come home from a gaff (house party) or a night out and you feel the drink starting to hit you.
Oh no that drink has proper hit me I have gaff fever.
by Polomint2001 December 25, 2022
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A concoction of alcoholic beverages transferred into an empty 2L bottle of some sort and shared amongst a group of people leaving a house "gaff" party en route to a nightclub.

The name originates from North County Dublin, the bottle resembles a house phone, & everyone always wants to use the gaff phone!
Who wants to use the gaff phone?

Giz a shot of the gaff phone?

Who's next on the gaff phone?
by MalletMan December 13, 2016
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when you and all your mates go to a gaff (a house party) and fuck the house up by doing weird shit like putting bananas in lights and sriracha in the knife holder
friend 1: yo my mates having a gaff tonight
friend 2: sweet wanna make it a baz gaff?
by blackcurrantsoda December 20, 2017
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someone who invites loads of people to their gaff to shag them and their friends do the same in all rooms of the house
ahh stay away from mike he’s a gaff banger
by toenails> August 21, 2019
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The act of “bezzin the gaff
Mike-Yoooo Wys

Man- Bezzin gaff an that
by Pimpnailslol February 4, 2022
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