Skull back

v.

Ingesting liquid substances at a ferocious rate.

In use

De missus caught me skulling back pints with de diddly money so she bet de bollix offa me...

Let Lawrence Muck translate it to posh English for you
Lawrence Muck

Ah, there you are. Would you like me to translate 'Skull back' in use for you?

My wife caught me downing pints with the Christmas bonus money, so she thrashed the living daylights out of me.