1. Drink down entirely
   "They belted down a few beers after work";
   - toss off [informal], pop [informal], bolt down [informal], pour down, down [informal], drink down, kill [informal]
    
2. Rain heavily
   "Put on your rain coat— it's belting down outside!";
   - pour, pelt, rain cats and dogs [informal], rain buckets [informal], pelt down [informal], bucket [Brit, informal], teem [informal], tip [Brit, informal], chuck it down [Brit, informal], chuck [Brit, informal]

Derived forms: belted down, belting down, belts down

See also: drink

Type of: drink, imbibe, rain, rain down