Pull a Mab 

To constantly be lacking change or enough money to purchase small items of low value when others go to the store for you, then conveniently forgetting to give the little amount back or assuming that since it is a small amount the lender does not want it back or will forget about it.

Did he give you your 2$ back for the lotto tickets we bought as a group last week ? No he pulled a Mab and pretended he forgot. I hate people who pull a Mab

Pull a Mab by Joe Milosovich November 30, 2006