When a lot of selling of a cryptocurrency takes place all at once. This can happen across a single cryptocurrency, an entire sector like DeFi, Gaming, or Metaverse, with an entire ecosystem like Ethereum, or with all cryptocurrencies simultaneously. The dump usually causes sharp spikes down in price, often causing more investors and traders to sell off, reinforcing the selling pressure.
Example
“Whales dumped over 10,000 BTC on exchanges in a single hour, causing a 15% flash crash before the market partially recovered.”