1. fell or slid down rapidly in large quantities like an avalanche
2. overwhelmed someone or something with a large amount
Usage: figurative

Examples

• Snow avalanched down the mountainside after the loud noise.
• Rocks avalanched onto the road during the earthquake.
• The team was avalanched with fan mail after winning the championship.
• Complaints avalanched into the customer service department.
• Books avalanched off the overloaded shelf.
• The company was avalanched with orders during the holiday season.