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.]

[1930s+] 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 ).