grand theft borrower
A term used to describe a person who continually tries to borrow money but has no actual intention of ever paying the money back although prior to receiving the loan they will say anything under the sun to convince the lender that they will get their money back. Once the loan is made, the grand theft borrower will intentionally avoid the matter.
Big John's cousin advised him that she needed $300 to fix her car and promised that she would no doubt pay him back by the end of the week. When Big John saw her at the nail shop two weeks later, he realized his cousin was a grand theft borrower and he was screwed.