1. Sold at a low or reduced price; very inexpensive. The term comes from a section of a department store, usually at the ground or basement level, where inexpensive items or those at reduced prices are sold. George paid nearly $500 for his designer suit, but I think my bargain-basement suit looks just as nice.
2. Of very poor or inferior quality; having very little or no value. You can tell that these are bargain-basement toys: they all broke after an hour of the kids playing with them.