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
I saw 'sasu-kyū' online; apparently it's a sarcastic jab at Kyūshū's male chauvinism.