pull a sully

Verb, to grossly over-exaggerate. Usually this is with a fact or experience. To properly pull a sully, you must always reference a certain website or source, which can never be found at a later time. This practice is extremely annoying.

Guy 1: Have you heard about the new Audi Q 5? It's diesel gets 81MPG! I heard ti on the Audi website!
Guy 2: I don't think so. Let's check that website.
(Website says it gets 25 MPG)
Guy 1: I could have sworn it said 81! I must have read it somewhere else!
Guy 2: Shut up. Don't pull a Sully on me.