The Meridell Rubbish Dump is located right outside of Meri Acres Farm. It bears some similarities to the Money Tree in that it is a place to get free items, said to be donated by others. In the case of the Rubbish Dump however, the donors are all inhabitants of Neopia. Among these donors are King Skarl, Somebody Smelly, some farmers, Rowdy Peasants, and the fabled Dung Faerie. You are able to grab up to 10 items per day from the Rubbish Dump, and that limit is combined with what you grab from the Second-Hand Shoppe and Money Tree as well. On April 11, 2022, TNT caused a boom in the drop rates of some rare items from the Rubbish Dump, resulting in April 16's Rubbish Dump Day.
For a That's Not Rubbish avatar, nab a Petpet, Paint Brush, bottled Faerie, Hidden Tower item, or Apple Core from here.
