Comes from an uneducated tourists feeble, but well intentioned attempt, at raising a glass and toasting a drink with the Irish Gaelic term, ‘slàinte mhath’, meaning ‘Good health’.
First used in the Westenra Hotel in Monaghan , Monaghan Country, Ireland in 2017 by the Burnett Family, ‘Schlangnah’ has now become a socially accepted term when raising a glass with Irish mates in both Australia and New Zealand.
(v) hanging out with class, style, and attitude (n) a way of life, the actual schlang session
(adj) "schlangin'" person - a player, or someone who exemplifies every good quality, or is really hot and tight.