Definition from Wiktionary, the free dictionary
dumpster diving (uncountable)
- (US) the act of recovering, for any purpose, discarded items that would otherwise be sent to a landfill
- binning, D-Mart, dumpstering
- garbage gleaning, garbage picking, garbing
- skip-raiding, skipping, tatting
- "Diving" in the term refers to putting one's hands into the dumpster (or other receptacle storing discarded items) rather than one's whole body.
act of recovering discarded items