fenergan 

The Australian word for 'Finnegan'. A tablet

example.
mum-hey, son can you please pass me a fenergan.
son-sure.

fenergan by wallie2169 September 5, 2017

fanergan 

A common drunk taken by delinquent teens to guarantee a #lit night

Joey let’s get this party started and drop a few fanergans

fanergan by Djfhrhfidndbf May 9, 2018