Green’s Dictionary of Slang

-face sfx

[note earlier uses from 17C are more literal, such as bracket-face n.; carbuncle face n.; chitty-face n.; fish-face n.]

a sfx used in comb. with an abusive epithet to form a derog. term of address, e.g. Hello, dickface (cf. bumface n.; cuntface n.; fart-face n.; fuckface n.; pissface n.; pizza face n.; shitface n.1 ).

implied in fart-face n.
[US]Eble Campus Sl. Fall 10: SKANK – common nickname or greeting: ‘Hey, SKANK, how was class today?’ Also SKANKFACE.