Garbage Merchant

Any retailer that sells junk, knowingly defective products, has shitty or non-existent technical support, and just sells completely and utterly useless crap. Garbage Merchant products should be bought and thrown directly in the trash. If you purchase from a Garbage Merchant, consider that you have just made a donation to them and got next to nothing in return.
Some examples of Garbage Merchant sales items include: 1) Anything at a dollar store, 2) knick-knack shops, 3) most independently owned, used car dealerships.

Two shoppers at a dollar store:

Shopper One: "This place has a lot of cheap crap."
Shopper Two: "Yeah, it's basically a Garbage Merchant."