ainscow

1. One who lies out of his/her ass.
2. One who commits the act of ainscow.

ainscow=absolute nonesense, to lie out of the asshole.
Me: John is such a ainscow
Eric: Why do you say that?
Me: because he promised that he'd give me his PS3 ifI could end DMC4 in a week.
Eric: well, you should have known that he was ainscowing from the door.
Me: that asshole.