Is there a variet of English where this is correct? Or is it perhaps a mis-spelling of "nob"? But even then, it's the head, not the face....
Main Entry: knob
Etymology: Middle English knobbe; akin to Middle Low German knubbe knob
1 a : a rounded protuberance : LUMP b : a small rounded ornament or handle
2 : a rounded usually isolated hill or mountain
knob /nb; NAmE nb/ noun
1 a round switch on a machine such as a television that you use to turn it on and off, etc.: the volume control knob
2 a round handle on a door or a drawer
3 a round lump on the surface or end of sth
4 (especially BrE) a small lump of sth such as butter
5 (BrE, taboo, slang) a penis
knob noun 1 a hard rounded projection. 2 a handle, especially a rounded one, on a door or drawer. 3 a button on mechanical or electrical equipment that is pressed or rotated to operate it. 4 a small roundish lump • a knob of butter. 5 coarse slang a the penis; b a stupid person. knobble noun a little knob. knobbly adj (knobblier, knobbliest) covered with or full of knobs; knotty. knobby adj (knobbier, knobbiest) with knobs on Brit colloq with interest; more so.
ETYMOLOGY: 14c: from German knobbe a knot in wood.
nob3 noun, slang the head.
ETYMOLOGY: 17c: probably from knob.
Online Etymology Dict:
1373, knobe, probably from a Scand. or Ger. source (cf. M.L.G. knobbe "knob," O.N. knyfill "short horn"). Meaning "knoll, isolated round hill" is first recorded 1650, especially in U.S.
"head," c.1700, variant of knob (q.v.).