Green’s Dictionary of Slang

kip n.4

[Scot. kip, a promontory on a hill, a turned-up nose]

(Scot.) the face.

[Scot]I. Welsh Filth 187: Kip as rid as my cherry eftir a night’s hooring.
[Scot]T. Black Gutted 32: Johnny Johnstone was all needle [...] I didn’t like the kip of him.
[Scot]I. Welsh Decent Ride 325: Eh’s no bad at the poker face [...] but ah kin see the kip gittin slightly ridder.