cheek

(noun) either side of the face below the eyes.

(noun) an impudent statement. Synonyms: impudence, impertinence.

(noun) either of the two large fleshy masses of muscular tissue that form the human rump. Synonyms: buttock.

(noun) impudent aggressiveness. Synonyms: boldness, nerve, brass, face. Examples: "I couldn't believe her boldness." "He had the effrontery to question my honesty."

(verb) speak impudently to.