gaff phone

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?