expression
as expected of Kyūshū (esp. male chauvinism)
Slang abbreviation of さすが九州, often used humorously or critically about stereotypical Kyūshū male attitudes. Limited to informal, often online, contexts.
See also: さすが
「さす九」ってネットで見たけど、九州の男尊女卑を皮肉ってるんだって。
I saw 'sasu-kyū' online; apparently it's a sarcastic jab at Kyūshū's male chauvinism.