Dumpster

A dumpster is an object in The Sims 3 and The Sims 4: Eco Lifestyle. Sims can dumpster dive in one to retrieve valuable ― or worthless ― items based on outcome.

The Sims 3
In The Sims 3, dumpsters were purely decorative objects until patch 50 (coinciding with the release of The Sims 3: University Life). Sims have the option to dumpster dive for cheap (but usable) furniture and collectables. This will almost completely deplete their hygiene needs, and may give them a "nauseous" moodlet, which will cause them to vomit when it expires.

If University Life is installed, dumpster diving raises a Sim's level in the rebel social group.

The Sims 4: Eco Lifestyle
In The Sims 4: Eco Lifestyle, the dumpster can, mainly, be used to dispose of trash. Like all other outdoor garbage cans, dumpsters are considered to be "bottomless", meaning they will never need emptying. If the Reduce and Recycle lot trait is used, however, they will stop being "bottomless" and will have to be emptied by a garbage collector every week.

In addition to using it as a garbage can, Sims can dumpster dive for a variety of reasons, including for "deals" (furniture and decorations), for meals, and for "thrills" (WooHoo). Objects found in a dumpster may need to be repaired before they can be used. Sims also have the option to nap in dumpsters. Climbing into a dumpster will deplete Sims' hygiene needs, and will make them feel uncomfortable.