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1.
Scottish term for a drink, usually of the alcoholic variety.
Wee Man: Hey big man, ye gang doon eh pub for a wee schwally?

Big Man: Aye, pure schwally man!
by RossTMcConnell April 16, 2008
 
2.
A term used to describe an alcoholic beverage. First used by M. Patterson of Blackpool.
Neil : Are we going Skydiving then?
Matt : Yes, however I shall require a few schwallies before doing so to calm my nerves

Matt : Lets go into town for the 45th night on the row... just for a few schwallies.
by Some Negro June 08, 2005