fob 2 
(fŏb)
(fŏb)tr.v. fobbed, fob·bing, fobs
Archaic
Phrasal Verb: Archaic
To cheat or deceive (another).
fob off
1. To dispose of (goods) by fraud or deception; palm off: fobbed off the zircon as a diamond.
2. To put off or appease by deceitful or evasive means: needed help but was fobbed off with promises.
[Middle English fobben, probably from fob, trickster.]