WordWeb Online

1. A very large indefinite number (usually hyperbole)
   "there were jillions of flies";
   - million [informal], billion [informal], trillion [informal], zillion [informal], gazillion [informal], bazillion [N. Amer, informal], bajillion [informal], squillion [informal]

Derived forms: jillions

Type of: large indefinite amount, large indefinite quantity

Encyclopedia: Jillion