WordWeb Online

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
   - pour, pelt, rain cats and dogs [informal], rain buckets [informal], pelt down [informal], tip [Brit, informal], chuck it down [Brit, informal], chuck [Brit, informal], bucket [Brit, informal], teem [informal]

Derived forms: belting down, belted down, belts down

Type of: drink, imbibe, rain, rain down