That may be (((google's))) definition of it, but in usage it means the audacity to tell a lie so blatant it warrants only incredulity. Jews have this expression, or rather a bit of wisdom they live by: "people are more likely to believe a big lie than a little one". If you observe the Jews you will notice that they never make small lies, they always make it the opposite of the truth. If they want to convince you that the tiny New York apartment they are renting you is big they won't say it's "on the larger side" they will say "it's huge for the area". They always go to the furthest extreme.