five pints or more down the pub. usually ending with some kind of bizarre drunken hilarity.

"swift half" refers to the mythical quick half pint on the way home, or on your way somewhere... never happens.
"I woke up this morning with mustard all down my jeans and a kebab in my bed. Ooh me head... I only went out for a swift half"
by Ben Bashford June 3, 2003
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