Smarmy

a smarmy salesman with a big smile

Starring a smarmy dog and scores of hapless flying wildfowl, Duck Hunt was the game that introduced many to the joys of the NES Zapper lightgun.

He looked faintly loutish, with smarmy hair and a hint of a moustache.

I pulled on my smarmy t-shirt and my ragged jeans and dragged myself to report to my supervisor.