■ noun
1》 a top hat.
2》 N. Amer. informal a snobbish or supercilious person.
3》 ( high-hat ) variant form of hi-hat .
■ adjective ( high-hat ) N. Amer. informal snobbish.
■ verb ( high-hat ) ( high-hats , high-hatting , high-hatted ) N. Amer. informal treat superciliously.