Green’s Dictionary of Slang

chevy (chase) n.

also chevie, chevvy chase, chibby chase, chivy, chivvy chase
[rhy. sl.; ult. the proper name Chevy Chase, the site of a celebrated 17C border skirmish and thus the subject and title of a popular ballad; the alleged origin – an actor – in cit. 2000 is invalid]

[mid-19C+] the face.