SLiar

A sliar is someone who is sly and underhand, also telling lie upon lie to perpertuate their own superiority in the eyes of their peers. For example someone who is usually relatively quiet in terms of office banter but all of a sudden pipes up, with a lie when there are females present

A SLiar would say: "Hey where's that book you've been reading, you know the one with the porn stories in it"......"I never read porn books I think they're disgusting".

A put down but in the same vein, also, an out right lie.