B/C Loan

What Does B/C Loan Mean?
A classification of loans associated with the borrowers that have tainted or limited credit histories. Generally, B/C refers to any loan that is classified as subprime, or a "B" or "C" class loan. 

Within the subprime sector borrowers are graded according to their credit history. Different lenders have different grading systems based on different credit requirements. One subprime lender might have a grading system with classifications designated as A to C minus, while another subprime lender might have a grading system with classifications designated as Premium to C which all fall within the subprime sector.

Investopedia explains B/C Loan
Because of the credit risk associated with subprime lending, B/C loan usually have higher costs and interest rates than prime loans. B/C loans are important financing vehicles for consumers with less than optimal credit histories because they provide an opportunity for such consumers to repair/improve their credit to the point where they can obtain more favorable future financing terms.